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ICD-10-CM Codes
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L00-L99
Diseases of the skin and subcutaneous tissue
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L80-L99
Other disorders of the skin and subcutaneous tissue
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L98-
Other disorders of skin and subcutaneous tissue, not elsewhere classified
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2021 ICD-10-CM Diagnosis Code L98.4
2021 ICD-10-CM Diagnosis Code L98.4
Non-pressure chronic ulcer of skin, not elsewhere classified
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
- L98.4 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2021 edition of ICD-10-CM L98.4 became effective on October 1, 2020.
- This is the American ICD-10-CM version of L98.4 - other international versions of ICD-10 L98.4 may differ.
Applicable To- Chronic ulcer of skin NOS
- Tropical ulcer NOS
- Ulcer of skin NOS
Type 2 ExcludesType 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 (L98.4) 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
- L89.02 Pressure ulcer of left elbow
- 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
- L89.2 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
- L89.22 Pressure ulcer of left hip
- 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
- L89.32 Pressure ulcer of left buttock
- 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
- L89.52 Pressure ulcer of left ankle
- 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
- L89.62 Pressure ulcer of left heel
- L89.8 Pressure ulcer of other site
- L89.81 Pressure ulcer of head
- L89.89 Pressure ulcer of other site
- 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...
- gangrene (
ICD-10-CM Diagnosis Code I96
Gangrene, not elsewhere classified
2016 2017 2018 2019 2020 2021 Billable/Specific Code
Type 2 Excludes- gangrene in diabetes mellitus (E08-E13 with .52)
- skin infections (L00-L08
ICD-10-CM Range L00-L08
Infections of the skin and subcutaneous tissueType 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
- ulcer of lower limb NEC (
ICD-10-CM Diagnosis Code L97
L97.-) - varicose ulcer (
ICD-10-CM Diagnosis Code I83.0
Varicose veins of lower extremities with ulcer
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
Use Additional- code to identify severity of ulcer (L97.-)
ICD-10-CM Diagnosis Code I83.93
Asymptomatic varicose veins of bilateral lower extremities
2016 2017 2018 2019 2020 2021 Billable/Specific Code Adult Dx (15-124 years)
The following code(s) above
L98.4 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
L98.4:
- A circumscribed inflammatory and often suppurating and necrotic lesion on the skin. Causes include trauma, peripheral vascular disorder, diabetes, exposure to heat or cold, exposure to corrosive agents, infections, and prolonged staying in one position (pressure ulcer).
- A disorder characterized by circumscribed, inflammatory and necrotic erosive lesion on the skin.
- Lesion on the surface of the skin produced by the sloughing of inflammatory necrotic 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
ICD-10-CM Codes Adjacent To L98.4
L97.925 …… with muscle involvement without evidence of necrosis
L97.926 …… with bone involvement without evidence of necrosis
L97.928 …… with other specified severity
L97.929 …… with unspecified severity
L98 Other disorders of skin and subcutaneous tissue, not elsewhere classified
L98.1 Factitial dermatitis
L98.2 Febrile neutrophilic dermatosis [Sweet]
L98.3 Eosinophilic cellulitis [Wells]
L98.4
Non-pressure chronic ulcer of skin, not elsewhere classified
L98.41 Non-pressure chronic ulcer of buttock
L98.411 …… limited to breakdown of skin
L98.415 …… with muscle involvement without evidence of necrosis
L98.416 …… with bone involvement without evidence of necrosis
L98.418 …… with other specified severity
L98.419 …… with unspecified severity
L98.42 Non-pressure chronic ulcer of back
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
