ICD-10-CM Codes
L00-L99
L80-L99
L97-
2023 ICD-10-CM Diagnosis Code L97

2023 ICD-10-CM Diagnosis Code L97

Non-pressure chronic ulcer of lower limb, not elsewhere classified

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

L97 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
Short description: Non-pressure chronic ulcer of lower limb, NEC
The 2023 edition of ICD-10-CM L97 became effective on October 1, 2022.
This is the American ICD-10-CM version of L97 - other international versions of ICD-10 L97 may differ.

Code First

Code First Help

Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.

any associated underlying condition, such as:
any associated gangrene (
ICD-10-CM Diagnosis Code I96
Gangrene, not elsewhere classified
Applicable To
- Gangrenous cellulitis
Type 1 Excludes
- gangrene in atherosclerosis of native arteries of the extremities (I70.26)
- gangrene in hernia (K40.1, K40.4, K41.1, K41.4, K42.1, K43.1-, K44.1, K45.1, K46.1)
- gangrene in other peripheral vascular diseases (I73.-)
- gangrene of certain specified sites - see Alphabetical Index
- gas gangrene (A48.0)
- pyoderma gangrenosum (L88)
Type 2 Excludes
- gangrene in diabetes mellitus (E08-E13 with .52)
I96
)
atherosclerosis of the lower extremities (
ICD-10-CM Diagnosis Code I70.23
Atherosclerosis of native arteries of right leg with ulceration
Includes
- any condition classifiable to I70.211 and I70.221
- chronic limb-threatening ischemia of native arteries of right leg with ulceration
- critical limb ischemia of native arteries of right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.23-
,
ICD-10-CM Diagnosis Code I70.24
Atherosclerosis of native arteries of left leg with ulceration
Includes
- any condition classifiable to I70.212 and I70.222
- chronic limb-threatening ischemia of native arteries of left leg with ulceration
- critical limb ischemia of native arteries of left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.24-
,
ICD-10-CM Diagnosis Code I70.33
Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration
Includes
- any condition classifiable to I70.311 and I70.321
- chronic limb-threatening ischemia of unspecified type of bypass graft(s) of the right leg with ulceration
- critical limb ischemia of unspecified type of bypass graft(s) of the right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.33-
,
ICD-10-CM Diagnosis Code I70.34
Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration
Includes
- any condition classifiable to I70.312 and I70.322
- chronic limb-threatening ischemia of unspecified type of bypass graft(s) of the left leg with ulceration
- critical limb ischemia of unspecified type of bypass graft(s) of the left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.34-
,
ICD-10-CM Diagnosis Code I70.43
Atherosclerosis of autologous vein bypass graft(s) of the right leg with ulceration
Includes
- any condition classifiable to I70.411 and I70.421
- chronic limb-threatening ischemia of autologous vein bypass graft(s) of the right leg with ulceration
- critical limb ischemia of autologous vein bypass graft(s) of the right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.43-
,
ICD-10-CM Diagnosis Code I70.44
Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration
Includes
- any condition classifiable to I70.412 and I70.422
- chronic limb-threatening ischemia of autologous vein bypass graft(s) of the left leg with ulceration
- critical limb ischemia of autologous vein bypass graft(s) of the left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.44-
,
ICD-10-CM Diagnosis Code I70.53
Atherosclerosis of nonautologous biological bypass graft(s) of the right leg with ulceration
Includes
- any condition classifiable to I70.511 and I70.521
- chronic limb-threatening ischemia of nonautologous biological bypass graft(s) of the right leg with ulceration
- critical limb ischemia of nonautologous biological bypass graft(s) of the right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.53-
,
ICD-10-CM Diagnosis Code I70.54
Atherosclerosis of nonautologous biological bypass graft(s) of the left leg with ulceration
Includes
- any condition classifiable to I70.512 and I70.522
- chronic limb-threatening ischemia of nonautologous biological bypass graft(s) of the left leg with ulceration
- critical limb ischemia of nonautologous biological bypass graft(s) of the left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.54-
,
ICD-10-CM Diagnosis Code I70.63
Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration
Includes
- any condition classifiable to I70.611 and I70.621
- chronic limb-threatening ischemia of nonbiological bypass graft(s) of the right leg with ulceration
- critical limb ischemia of nonbiological bypass graft(s) of the right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.63-
,
ICD-10-CM Diagnosis Code I70.64
Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration
Includes
- any condition classifiable to I70.612 and I70.622
- chronic limb-threatening ischemia of nonbiological bypass graft(s) of the left leg with ulceration
- critical limb ischemia of nonbiological bypass graft(s) of the left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.64-
,
ICD-10-CM Diagnosis Code I70.73
Atherosclerosis of other type of bypass graft(s) of the right leg with ulceration
Includes
- any condition classifiable to I70.711 and I70.721
- chronic limb-threatening ischemia of other type of bypass graft(s) of the right leg with ulceration
- critical limb ischemia of other type of bypass graft(s) of the right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.73-
,
ICD-10-CM Diagnosis Code I70.74
Atherosclerosis of other type of bypass graft(s) of the left leg with ulceration
Includes
- any condition classifiable to I70.712 and I70.722
- chronic limb-threatening ischemia of other type of bypass graft(s) of the left leg with ulceration
- critical limb ischemia of other type of bypass graft(s) of the left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
I70.74-
)
chronic venous hypertension (
ICD-10-CM Diagnosis Code I87.31
Chronic venous hypertension (idiopathic) with ulcer
Use Additional
- code to specify site and severity of ulcer (L97.-)
I87.31-
,
ICD-10-CM Diagnosis Code I87.33
Chronic venous hypertension (idiopathic) with ulcer and inflammation
Use Additional
- code to specify site and severity of ulcer (L97.-)
I87.33-
)
diabetic ulcers (
ICD-10-CM Diagnosis Code E08.621
Diabetes mellitus due to underlying condition with foot ulcer
Use Additional
- code to identify site of ulcer (L97.4-, L97.5-)
E08.621
,
ICD-10-CM Diagnosis Code E08.622
Diabetes mellitus due to underlying condition with other skin ulcer
Use Additional
- code to identify site of ulcer (L97.1-L97.9, L98.41-L98.49)
E08.622
,
ICD-10-CM Diagnosis Code E09.621
Drug or chemical induced diabetes mellitus with foot ulcer
Use Additional
- code to identify site of ulcer (L97.4-, L97.5-)
E09.621
,
ICD-10-CM Diagnosis Code E09.622
Drug or chemical induced diabetes mellitus with other skin ulcer
Use Additional
- code to identify site of ulcer (L97.1-L97.9, L98.41-L98.49)
E09.622
,
ICD-10-CM Diagnosis Code E10.621
Type 1 diabetes mellitus with foot ulcer
Use Additional
- code to identify site of ulcer (L97.4-, L97.5-)
E10.621
,
ICD-10-CM Diagnosis Code E10.622
Type 1 diabetes mellitus with other skin ulcer
Use Additional
- code to identify site of ulcer (L97.1-L97.9, L98.41-L98.49)
E10.622
,
ICD-10-CM Diagnosis Code E11.621
Type 2 diabetes mellitus with foot ulcer
Use Additional
- code to identify site of ulcer (L97.4-, L97.5-)
E11.621
,
ICD-10-CM Diagnosis Code E11.622
Type 2 diabetes mellitus with other skin ulcer
Use Additional
- code to identify site of ulcer (L97.1-L97.9, L98.41-L98.49)
E11.622
,
ICD-10-CM Diagnosis Code E13.621
Other specified diabetes mellitus with foot ulcer
Use Additional
- code to identify site of ulcer (L97.4-, L97.5-)
E13.621
,
ICD-10-CM Diagnosis Code E13.622
Other specified diabetes mellitus with other skin ulcer
Use Additional
- code to identify site of ulcer (L97.1-L97.9, L98.41-L98.49)
E13.622
)
postphlebitic syndrome (
ICD-10-CM Diagnosis Code I87.01
Postthrombotic syndrome with ulcer
Use Additional
- code to specify site and severity of ulcer (L97.-)
I87.01-
,
ICD-10-CM Diagnosis Code I87.03
Postthrombotic syndrome with ulcer and inflammation
Use Additional
- code to specify site and severity of ulcer (L97.-)
I87.03-
)
postthrombotic syndrome (
ICD-10-CM Diagnosis Code I87.01
Postthrombotic syndrome with ulcer
Use Additional
- code to specify site and severity of ulcer (L97.-)
I87.01-
,
ICD-10-CM Diagnosis Code I87.03
Postthrombotic syndrome with ulcer and inflammation
Use Additional
- code to specify site and severity of ulcer (L97.-)
I87.03-
)
varicose ulcer (
ICD-10-CM Diagnosis Code I83.0
Varicose veins of lower extremities with ulcer
Use Additional
- code to identify severity of ulcer (L97.-)
I83.0-
,
ICD-10-CM Diagnosis Code I83.2
Varicose veins of lower extremities with both ulcer and inflammation
Use Additional
- code to identify severity of ulcer (L97.-)
I83.2-
)

Type 2 Excludes

Type 2 Excludes Help

A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (L97) and the excluded code together.

pressure ulcer (pressure area) (
ICD-10-CM Diagnosis Code L89
- L89 Pressure ulcer
  - L89.0 Pressure ulcer of elbow
    - L89.00 Pressure ulcer of unspecified elbow
      L89.000 Pressure ulcer of unspecified elbow, unstagea...
      L89.001 …… stage 1
      L89.002 …… stage 2
      L89.003 …… stage 3
      L89.004 …… stage 4
      L89.006 Pressure-induced deep tissue damage of unspec...
      L89.009 Pressure ulcer of unspecified elbow, unspecif...
    - L89.01 Pressure ulcer of right elbow
      L89.010 …… unstageable
      L89.011 …… stage 1
      L89.012 …… stage 2
      L89.013 …… stage 3
      L89.014 …… stage 4
      L89.016 Pressure-induced deep tissue damage of right ...
      L89.019 Pressure ulcer of right elbow, unspecified st...
    - L89.02 Pressure ulcer of left elbow
      L89.020 …… unstageable
      L89.021 …… stage 1
      L89.022 …… stage 2
      L89.023 …… stage 3
      L89.024 …… stage 4
      L89.026 Pressure-induced deep tissue damage of left e...
      L89.029 Pressure ulcer of left elbow, unspecified sta...
  - L89.1 Pressure ulcer of back
    - L89.10 Pressure ulcer of unspecified part of back
      L89.100 Pressure ulcer of unspecified part of back, u...
      L89.101 Pressure ulcer of unspecified part of back, s...
      L89.102 Pressure ulcer of unspecified part of back, s...
      L89.103 Pressure ulcer of unspecified part of back, s...
      L89.104 Pressure ulcer of unspecified part of back, s...
      L89.106 Pressure-induced deep tissue damage of unspec...
      L89.109 Pressure ulcer of unspecified part of back, u...
    - L89.11 Pressure ulcer of right upper back
      L89.110 Pressure ulcer of right upper back, unstageab...
      L89.111 …… stage 1
      L89.112 …… stage 2
      L89.113 …… stage 3
      L89.114 …… stage 4
      L89.116 Pressure-induced deep tissue damage of right ...
      L89.119 Pressure ulcer of right upper back, unspecifi...
    - L89.12 Pressure ulcer of left upper back
      L89.120 Pressure ulcer of left upper back, unstageabl...
      L89.121 …… stage 1
      L89.122 …… stage 2
      L89.123 …… stage 3
      L89.124 …… stage 4
      L89.126 Pressure-induced deep tissue damage of left u...
      L89.129 Pressure ulcer of left upper back, unspecifie...
    - L89.13 Pressure ulcer of right lower back
      L89.130 Pressure ulcer of right lower back, unstageab...
      L89.131 …… stage 1
      L89.132 …… stage 2
      L89.133 …… stage 3
      L89.134 …… stage 4
      L89.136 Pressure-induced deep tissue damage of right ...
      L89.139 Pressure ulcer of right lower back, unspecifi...
    - L89.14 Pressure ulcer of left lower back
      L89.140 Pressure ulcer of left lower back, unstageabl...
      L89.141 …… stage 1
      L89.142 …… stage 2
      L89.143 …… stage 3
      L89.144 …… stage 4
      L89.146 Pressure-induced deep tissue damage of left l...
      L89.149 Pressure ulcer of left lower back, unspecifie...
    - L89.15 Pressure ulcer of sacral region
      L89.150 …… unstageable
      L89.151 …… stage 1
      L89.152 …… stage 2
      L89.153 …… stage 3
      L89.154 …… stage 4
      L89.156 Pressure-induced deep tissue damage of sacral...
      L89.159 Pressure ulcer of sacral region, unspecified ...
  - L89.2 Pressure ulcer of hip
    - L89.20 Pressure ulcer of unspecified hip
      L89.200 Pressure ulcer of unspecified hip, unstageabl...
      L89.201 …… stage 1
      L89.202 …… stage 2
      L89.203 …… stage 3
      L89.204 …… stage 4
      L89.206 Pressure-induced deep tissue damage of unspec...
      L89.209 Pressure ulcer of unspecified hip, unspecifie...
    - L89.21 Pressure ulcer of right hip
      L89.210 …… unstageable
      L89.211 …… stage 1
      L89.212 …… stage 2
      L89.213 …… stage 3
      L89.214 …… stage 4
      L89.216 Pressure-induced deep tissue damage of right ...
      L89.219 Pressure ulcer of right hip, unspecified stag...
    - L89.22 Pressure ulcer of left hip
      L89.220 …… unstageable
      L89.221 …… stage 1
      L89.222 …… stage 2
      L89.223 …… stage 3
      L89.224 …… stage 4
      L89.226 Pressure-induced deep tissue damage of left h...
      L89.229 Pressure ulcer of left hip, unspecified stage...
  - L89.3 Pressure ulcer of buttock
    - L89.30 Pressure ulcer of unspecified buttock
      L89.300 Pressure ulcer of unspecified buttock, unstag...
      L89.301 Pressure ulcer of unspecified buttock, stage ...
      L89.302 Pressure ulcer of unspecified buttock, stage ...
      L89.303 Pressure ulcer of unspecified buttock, stage ...
      L89.304 Pressure ulcer of unspecified buttock, stage ...
      L89.306 Pressure-induced deep tissue damage of unspec...
      L89.309 Pressure ulcer of unspecified buttock, unspec...
    - L89.31 Pressure ulcer of right buttock
      L89.310 …… unstageable
      L89.311 …… stage 1
      L89.312 …… stage 2
      L89.313 …… stage 3
      L89.314 …… stage 4
      L89.316 Pressure-induced deep tissue damage of right ...
      L89.319 Pressure ulcer of right buttock, unspecified ...
    - L89.32 Pressure ulcer of left buttock
      L89.320 …… unstageable
      L89.321 …… stage 1
      L89.322 …… stage 2
      L89.323 …… stage 3
      L89.324 …… stage 4
      L89.326 Pressure-induced deep tissue damage of left b...
      L89.329 Pressure ulcer of left buttock, unspecified s...
  - L89.4 Pressure ulcer of contiguous site of back, bu...
    - L89.40 Pressure ulcer of contiguous site of back, bu...
    - L89.41 Pressure ulcer of contiguous site of back, bu...
    - L89.42 Pressure ulcer of contiguous site of back, bu...
    - L89.43 Pressure ulcer of contiguous site of back, bu...
    - L89.44 Pressure ulcer of contiguous site of back, bu...
    - L89.45 Pressure ulcer of contiguous site of back, bu...
    - L89.46 Pressure-induced deep tissue damage of contig...
  - L89.5 Pressure ulcer of ankle
    - L89.50 Pressure ulcer of unspecified ankle
      L89.500 Pressure ulcer of unspecified ankle, unstagea...
      L89.501 …… stage 1
      L89.502 …… stage 2
      L89.503 …… stage 3
      L89.504 …… stage 4
      L89.506 Pressure-induced deep tissue damage of unspec...
      L89.509 Pressure ulcer of unspecified ankle, unspecif...
    - L89.51 Pressure ulcer of right ankle
      L89.510 …… unstageable
      L89.511 …… stage 1
      L89.512 …… stage 2
      L89.513 …… stage 3
      L89.514 …… stage 4
      L89.516 Pressure-induced deep tissue damage of right ...
      L89.519 Pressure ulcer of right ankle, unspecified st...
    - L89.52 Pressure ulcer of left ankle
      L89.520 …… unstageable
      L89.521 …… stage 1
      L89.522 …… stage 2
      L89.523 …… stage 3
      L89.524 …… stage 4
      L89.526 Pressure-induced deep tissue damage of left a...
      L89.529 Pressure ulcer of left ankle, unspecified sta...
  - L89.6 Pressure ulcer of heel
    - L89.60 Pressure ulcer of unspecified heel
      L89.600 Pressure ulcer of unspecified heel, unstageab...
      L89.601 …… stage 1
      L89.602 …… stage 2
      L89.603 …… stage 3
      L89.604 …… stage 4
      L89.606 Pressure-induced deep tissue damage of unspec...
      L89.609 Pressure ulcer of unspecified heel, unspecifi...
    - L89.61 Pressure ulcer of right heel
      L89.610 …… unstageable
      L89.611 …… stage 1
      L89.612 …… stage 2
      L89.613 …… stage 3
      L89.614 …… stage 4
      L89.616 Pressure-induced deep tissue damage of right ...
      L89.619 Pressure ulcer of right heel, unspecified sta...
    - L89.62 Pressure ulcer of left heel
      L89.620 …… unstageable
      L89.621 …… stage 1
      L89.622 …… stage 2
      L89.623 …… stage 3
      L89.624 …… stage 4
      L89.626 Pressure-induced deep tissue damage of left h...
      L89.629 Pressure ulcer of left heel, unspecified stag...
  - L89.8 Pressure ulcer of other site
    - L89.81 Pressure ulcer of head
      L89.810 …… unstageable
      L89.811 …… stage 1
      L89.812 …… stage 2
      L89.813 …… stage 3
      L89.814 …… stage 4
      L89.816 Pressure-induced deep tissue damage of head
      L89.819 …… unspecified stage
    - L89.89 Pressure ulcer of other site
      L89.890 …… unstageable
      L89.891 …… stage 1
      L89.892 …… stage 2
      L89.893 …… stage 3
      L89.894 …… stage 4
      L89.896 Pressure-induced deep tissue damage of other ...
      L89.899 Pressure ulcer of other site, unspecified sta...
  - L89.9 Pressure ulcer of unspecified site
    - L89.90 Pressure ulcer of unspecified site, unspecifi...
    - L89.91 …… stage 1
    - L89.92 …… stage 2
    - L89.93 …… stage 3
    - L89.94 …… stage 4
    - L89.95 Pressure ulcer of unspecified site, unstageab...
    - L89.96 Pressure-induced deep tissue damage of unspec...
L89.-
)
skin infections (L00-L08
ICD-10-CM Range L00-L08
Infections of the skin and subcutaneous tissue
Type 2 Excludes
- hordeolum (H00.0)
- infective dermatitis (L30.3)
- local infections of skin classified in Chapter 1
- lupus panniculitis (L93.2)
- panniculitis NOS (M79.3)
- panniculitis of neck and back (M54.0-)
- Perlèche NOS (K13.0)
- Perlèche due to candidiasis (B37.0)
- Perlèche due to riboflavin deficiency (E53.0)
- pyogenic granuloma (L98.0)
- relapsing panniculitis [Weber-Christian] (M35.6)
- viral warts (B07.-)
- zoster (B02.-)
Use Additional
- code (B95-B97) to identify infectious agent.
- L00 Staphylococcal scalded skin syndrome
- L01 Impetigo
- L02 Cutaneous abscess, furuncle and carbuncl...
- L03 Cellulitis and acute lymphangitis
- L04 Acute lymphadenitis
- L05 Pilonidal cyst and sinus
- L08 Other local infections of skin and subcu...
)
specific infections classified to A00-B99
ICD-10-CM Range A00-B99
Certain infectious and parasitic diseases
- A00-A09 Intestinal infectious diseases
- A15-A19 Tuberculosis
- A20-A28 Certain zoonotic bacterial diseases
- A30-A49 Other bacterial diseases
- A50-A64 Infections with a predominantly sexual m...
- A65-A69 Other spirochetal diseases
- A70-A74 Other diseases caused by chlamydiae
- A75-A79 Rickettsioses
- A80-A89 Viral and prion infections of the centra...
- A90-A99 Arthropod-borne viral fevers and viral h...
- B00-B09 Viral infections characterized by skin a...
- B10-B10 Other human herpesviruses
- B15-B19 Viral hepatitis
- B20-B20 Human immunodeficiency virus [HIV] disea...
- B25-B34 Other viral diseases
- B35-B49 Mycoses
- B50-B64 Protozoal diseases
- B65-B83 Helminthiases
- B85-B89 Pediculosis, acariasis and other infesta...
- B90-B94 Sequelae of infectious and parasitic dis...
- B95-B97 Bacterial and viral infectious agents
- B99-B99 Other infectious diseases

Includes

Includes Help

"Includes" further defines, or give examples of, the content of the code or category.

chronic ulcer of skin of lower limb NOS
non-healing ulcer of skin
non-infected sinus of skin
trophic ulcer NOS
tropical ulcer NOS
ulcer of skin of lower limb NOS

The following code(s) above L97 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to L97:

L00-L99
2023 ICD-10-CM Range L00-L99
Diseases of the skin and subcutaneous tissue
Type 2 Excludes
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- lipomelanotic reticulosis (I89.8)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- viral warts (B07.-)
Diseases of the skin and subcutaneous tissue

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to L97:

Type 2 Excludes: L98.4
, L89

ICD-10-CM Diagnosis Code L98.4
Non-pressure chronic ulcer of skin, not elsewhere classified
Applicable To
- Chronic ulcer of skin NOS
- Tropical ulcer NOS
- Ulcer of skin NOS
Type 2 Excludes
- pressure ulcer (pressure area) (L89.-)
- gangrene (I96)
- skin infections (L00-L08)
- specific infections classified to A00-B99
- ulcer of lower limb NEC (L97.-)
- varicose ulcer (I83.0-I83.93)
ICD-10-CM Diagnosis Code L89
Pressure ulcer
Code First
- any associated gangrene (I96)
Includes
- bed sore
- decubitus ulcer
- plaster ulcer
- pressure area
- pressure sore
Type 2 Excludes
- decubitus (trophic) ulcer of cervix (uteri) (N86)
- diabetic ulcers (E08.621, E08.622, E09.621, E09.622, E10.621, E10.622, E11.621, E11.622, E13.621, E13.622)
- non-pressure chronic ulcer of skin (L97.-)
- skin infections (L00-L08)
- varicose ulcer (I83.0, I83.2)
Use Additional: I70.23
, I70.24
, I70.26
, I70.33
, I70.34
, I70.36
, I70.43
, I70.44
, I70.46
, I70.53
, I70.54
, I70.56
, I70.63
, I70.64
, I70.66
, I70.73
, I70.74
, I70.76
, I83.0
, I83.2
, I87.01
, I87.03
, I87.31
, I87.33

ICD-10-CM Diagnosis Code I70.23
Atherosclerosis of native arteries of right leg with ulceration
Includes
- any condition classifiable to I70.211 and I70.221
- chronic limb-threatening ischemia of native arteries of right leg with ulceration
- critical limb ischemia of native arteries of right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.24
Atherosclerosis of native arteries of left leg with ulceration
Includes
- any condition classifiable to I70.212 and I70.222
- chronic limb-threatening ischemia of native arteries of left leg with ulceration
- critical limb ischemia of native arteries of left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.26
Atherosclerosis of native arteries of extremities with gangrene
Includes
- any condition classifiable to I70.21-, I70.22-, I70.23-, I70.24-, and I70.25-
- chronic limb-threatening ischemia of native arteries of extremities with gangrene
- critical limb ischemia of native arteries of extremities with gangrene
Use Additional
- code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
ICD-10-CM Diagnosis Code I70.33
Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration
Includes
- any condition classifiable to I70.311 and I70.321
- chronic limb-threatening ischemia of unspecified type of bypass graft(s) of the right leg with ulceration
- critical limb ischemia of unspecified type of bypass graft(s) of the right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.34
Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration
Includes
- any condition classifiable to I70.312 and I70.322
- chronic limb-threatening ischemia of unspecified type of bypass graft(s) of the left leg with ulceration
- critical limb ischemia of unspecified type of bypass graft(s) of the left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.36
Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene
Includes
- any condition classifiable to I70.31-, I70.32-, I70.33-, I70.34-, I70.35
- chronic limb-threatening ischemia of unspecified type of bypass graft(s) of the extremities with gangrene
- critical limb ischemia of unspecified type of bypass graft(s) of the extremities with gangrene
Use Additional
- code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
ICD-10-CM Diagnosis Code I70.43
Atherosclerosis of autologous vein bypass graft(s) of the right leg with ulceration
Includes
- any condition classifiable to I70.411 and I70.421
- chronic limb-threatening ischemia of autologous vein bypass graft(s) of the right leg with ulceration
- critical limb ischemia of autologous vein bypass graft(s) of the right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.44
Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration
Includes
- any condition classifiable to I70.412 and I70.422
- chronic limb-threatening ischemia of autologous vein bypass graft(s) of the left leg with ulceration
- critical limb ischemia of autologous vein bypass graft(s) of the left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.46
Atherosclerosis of autologous vein bypass graft(s) of the extremities with gangrene
Includes
- any condition classifiable to I70.41-, I70.42-, and I70.43-, I70.44-, I70.45
- chronic limb-threatening ischemia of autologous vein bypass graft(s) of the extremities with gangrene
- critical limb ischemia of autologous vein bypass graft(s) of the extremities with gangrene
Use Additional
- code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
ICD-10-CM Diagnosis Code I70.53
Atherosclerosis of nonautologous biological bypass graft(s) of the right leg with ulceration
Includes
- any condition classifiable to I70.511 and I70.521
- chronic limb-threatening ischemia of nonautologous biological bypass graft(s) of the right leg with ulceration
- critical limb ischemia of nonautologous biological bypass graft(s) of the right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.54
Atherosclerosis of nonautologous biological bypass graft(s) of the left leg with ulceration
Includes
- any condition classifiable to I70.512 and I70.522
- chronic limb-threatening ischemia of nonautologous biological bypass graft(s) of the left leg with ulceration
- critical limb ischemia of nonautologous biological bypass graft(s) of the left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.56
Atherosclerosis of nonautologous biological bypass graft(s) of the extremities with gangrene
Includes
- any condition classifiable to I70.51-, I70.52-, and I70.53-, I70.54-, I70.55
- chronic limb-threatening ischemia of nonautologous biological bypass graft(s) of the extremities with gangrene
- critical limb ischemia of nonautologous biological bypass graft(s) of the extremities with gangrene
Use Additional
- code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
ICD-10-CM Diagnosis Code I70.63
Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration
Includes
- any condition classifiable to I70.611 and I70.621
- chronic limb-threatening ischemia of nonbiological bypass graft(s) of the right leg with ulceration
- critical limb ischemia of nonbiological bypass graft(s) of the right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.64
Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration
Includes
- any condition classifiable to I70.612 and I70.622
- chronic limb-threatening ischemia of nonbiological bypass graft(s) of the left leg with ulceration
- critical limb ischemia of nonbiological bypass graft(s) of the left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.66
Atherosclerosis of nonbiological bypass graft(s) of the extremities with gangrene
Includes
- any condition classifiable to I70.61-, I70.62-, I70.63-, I70.64-, I70.65
- chronic limb-threatening ischemia of nonbiological bypass graft(s) of the extremities with gangrene
- critical limb ischemia of nonbiological bypass graft(s) of the extremities with gangrene
Use Additional
- code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
ICD-10-CM Diagnosis Code I70.73
Atherosclerosis of other type of bypass graft(s) of the right leg with ulceration
Includes
- any condition classifiable to I70.711 and I70.721
- chronic limb-threatening ischemia of other type of bypass graft(s) of the right leg with ulceration
- critical limb ischemia of other type of bypass graft(s) of the right leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.74
Atherosclerosis of other type of bypass graft(s) of the left leg with ulceration
Includes
- any condition classifiable to I70.712 and I70.722
- chronic limb-threatening ischemia of other type of bypass graft(s) of the left leg with ulceration
- critical limb ischemia of other type of bypass graft(s) of the left leg with ulceration
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I70.76
Atherosclerosis of other type of bypass graft(s) of the extremities with gangrene
Includes
- any condition classifiable to I70.71-, I70.72-, I70.73-, I70.74-, I70.75
- chronic limb-threatening ischemia of other type of bypass graft(s) of the extremities with gangrene
- critical limb ischemia of other type of bypass graft(s) of the extremities with gangrene
Use Additional
- code to identify the severity of any ulcer (L97.-, L98.49-), if applicable
ICD-10-CM Diagnosis Code I83.0
Varicose veins of lower extremities with ulcer
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I83.2
Varicose veins of lower extremities with both ulcer and inflammation
Use Additional
- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I87.01
Postthrombotic syndrome with ulcer
Use Additional
- code to specify site and severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I87.03
Postthrombotic syndrome with ulcer and inflammation
Use Additional
- code to specify site and severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I87.31
Chronic venous hypertension (idiopathic) with ulcer
Use Additional
- code to specify site and severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I87.33
Chronic venous hypertension (idiopathic) with ulcer and inflammation
Use Additional
- code to specify site and severity of ulcer (L97.-)

ICD-10-CM Codes Adjacent To L97

L94.4 Gottron's papules

L94.5 Poikiloderma vasculare atrophicans

L94.6 Ainhum

L94.8 Other specified localized connective tissue disorders

L94.9 Localized connective tissue disorder, unspecified

L95 Vasculitis limited to skin, not elsewhere classified

L95.0 Livedoid vasculitis

L95.1 Erythema elevatum diutinum

L95.8 Other vasculitis limited to the skin

L95.9 Vasculitis limited to the skin, unspecified

L97 Non-pressure chronic ulcer of lower limb, not elsewhere classified

L97.1 Non-pressure chronic ulcer of thigh

L97.10 Non-pressure chronic ulcer of unspecified thigh

L97.101 …… limited to breakdown of skin

L97.102 …… with fat layer exposed

L97.103 …… with necrosis of muscle

L97.104 …… with necrosis of bone

L97.105 …… with muscle involvement without evidence of necrosis

L97.106 …… with bone involvement without evidence of necrosis

L97.108 …… with other specified severity

L97.109 …… with unspecified severity

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code L97

Non-pressure chronic ulcer of lower limb, not elsewhere classified

Gangrene, not elsewhere classified

Atherosclerosis of native arteries of right leg with ulceration

Atherosclerosis of native arteries of left leg with ulceration

Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration

Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration

Atherosclerosis of autologous vein bypass graft(s) of the right leg with ulceration

Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration

Atherosclerosis of nonautologous biological bypass graft(s) of the right leg with ulceration

Atherosclerosis of nonautologous biological bypass graft(s) of the left leg with ulceration

Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration

Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration

Atherosclerosis of other type of bypass graft(s) of the right leg with ulceration

Atherosclerosis of other type of bypass graft(s) of the left leg with ulceration

Chronic venous hypertension (idiopathic) with ulcer

Chronic venous hypertension (idiopathic) with ulcer and inflammation

Diabetes mellitus due to underlying condition with foot ulcer

Diabetes mellitus due to underlying condition with other skin ulcer

Drug or chemical induced diabetes mellitus with foot ulcer

Drug or chemical induced diabetes mellitus with other skin ulcer

Type 1 diabetes mellitus with foot ulcer

Type 1 diabetes mellitus with other skin ulcer

Type 2 diabetes mellitus with foot ulcer

Type 2 diabetes mellitus with other skin ulcer

Other specified diabetes mellitus with foot ulcer

Other specified diabetes mellitus with other skin ulcer

Postthrombotic syndrome with ulcer

Postthrombotic syndrome with ulcer and inflammation

Postthrombotic syndrome with ulcer

Postthrombotic syndrome with ulcer and inflammation

Varicose veins of lower extremities with ulcer

Varicose veins of lower extremities with both ulcer and inflammation

Infections of the skin and subcutaneous tissue

Certain infectious and parasitic diseases

Diseases of the skin and subcutaneous tissue

Non-pressure chronic ulcer of skin, not elsewhere classified

Pressure ulcer

Atherosclerosis of native arteries of right leg with ulceration

Atherosclerosis of native arteries of left leg with ulceration

Atherosclerosis of native arteries of extremities with gangrene

Atherosclerosis of unspecified type of bypass graft(s) of the right leg with ulceration

Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration

Atherosclerosis of unspecified type of bypass graft(s) of the extremities with gangrene

Atherosclerosis of autologous vein bypass graft(s) of the right leg with ulceration

Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration

Atherosclerosis of autologous vein bypass graft(s) of the extremities with gangrene

Atherosclerosis of nonautologous biological bypass graft(s) of the right leg with ulceration

Atherosclerosis of nonautologous biological bypass graft(s) of the left leg with ulceration

Atherosclerosis of nonautologous biological bypass graft(s) of the extremities with gangrene

Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration

Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration

Atherosclerosis of nonbiological bypass graft(s) of the extremities with gangrene

Atherosclerosis of other type of bypass graft(s) of the right leg with ulceration

Atherosclerosis of other type of bypass graft(s) of the left leg with ulceration

Atherosclerosis of other type of bypass graft(s) of the extremities with gangrene

Varicose veins of lower extremities with ulcer

Varicose veins of lower extremities with both ulcer and inflammation

Postthrombotic syndrome with ulcer

Postthrombotic syndrome with ulcer and inflammation

Chronic venous hypertension (idiopathic) with ulcer

Chronic venous hypertension (idiopathic) with ulcer and inflammation