ICD-10-CM Codes
I00-I99
I70-I79
I73-
2023 ICD-10-CM Diagnosis Code I73.9

2023 ICD-10-CM Diagnosis Code I73.9

Peripheral vascular disease, unspecified

2016

2017

2018

2019

2020

2021

2022

2023

Billable/Specific Code

I73.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2023 edition of ICD-10-CM I73.9 became effective on October 1, 2022.
This is the American ICD-10-CM version of I73.9 - other international versions of ICD-10 I73.9 may differ.

Applicable To

Intermittent claudication
Peripheral angiopathy NOS
Spasm of artery

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as I73.9. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

atherosclerosis of the extremities (
ICD-10-CM Diagnosis Code I70.2
Atherosclerosis of native arteries of the extremities
Applicable To
- Mönckeberg's (medial) sclerosis
Type 2 Excludes
- atherosclerosis of bypass graft of extremities (I70.30-I70.79)
Use Additional
- code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92)
I70.2-
-
ICD-10-CM Diagnosis Code I70.7
Atherosclerosis of other type of bypass graft(s) of the extremities
Use Additional
- code, if applicable, to identify chronic total occlusion of artery of extremity (I70.92)
I70.7-
)

The following code(s) above I73.9 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 I73.9:

I00-I99
2023 ICD-10-CM Range I00-I99
Diseases of the circulatory system
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)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Diseases of the circulatory system
I73
ICD-10-CM Diagnosis Code I73
Other peripheral vascular diseases
Type 2 Excludes
- chilblains (T69.1)
- frostbite (T33-T34)
- immersion hand or foot (T69.0-)
- spasm of cerebral artery (G45.9)
Other peripheral vascular diseases

Approximate Synonyms

Claudication due to peripheral vascular disease
Claudication in peripheral vascular disease
Gangrene due to peripheral vascular disease
Intermittent claudication
Pain at rest due to peripheral vascular disease
Peripheral arterial insufficiency
Peripheral arterial occlusive disease
Peripheral artery disease
Peripheral vascular disease
Peripheral vascular disease, rest pain
Posterior tibial artery insufficiency
Tissue necrosis in peripheral vascular disease
Vascular insufficiency of limb

Clinical Information

A symptom complex characterized by pain and weakness in skeletal muscle group associated with exercise, such as leg pain and weakness brought on by walking. Such muscle limpness disappears after a brief rest and is often relates to arterial stenosis; muscle ischemia; and accumulation of lactate.
Any disorder affecting blood flow through the veins or arteries outside of the heart.
Condition in which there is a deviation from or interruption of the normal structure or function of the blood vessels outside the heart; diseases of the peripheral as opposed to the cardiac circulation.
Pathological processes involving any one of the blood vessels in the vasculature outside the heart.

ICD-10-CM I73.9 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):

299 Peripheral vascular disorders with mcc
300 Peripheral vascular disorders with cc
301 Peripheral vascular disorders without cc/mcc

Convert I73.9 to ICD-9-CM

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

Diagnosis Index entries containing back-references to I73.9:

Angina (attack) (cardiac) (chest) (heart) (pectoris) (syndrome) (vasomotor) I20.9
ICD-10-CM Diagnosis Code I20.9
Angina pectoris, unspecified
Applicable To
Angina NOS
Anginal syndrome
Cardiac angina
Ischemic chest pain
- cruris I73.9
Angiopathia, angiopathy I99.9
ICD-10-CM Diagnosis Code I99.9
Unspecified disorder of circulatory system
- peripheral I73.9
Angiospasm (peripheral) (traumatic) (vessel) I73.9
Angiospastic disease or edema I73.9
Arteriospasm I73.9
Change(s) (in) (of) - see also Removal
- vasomotor I73.9
Charcot's
- syndrome I73.9 (intermittent claudication)
Claudication (intermittent) I73.9
Dilatation
- vasomotor I73.9
Disease, diseased - see also Syndrome
- angiospastic I73.9
- arterial I77.9
  ICD-10-CM Diagnosis Code I77.9
  Disorder of arteries and arterioles, unspecified
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  - peripheral I73.9
- artery I77.9
  ICD-10-CM Diagnosis Code I77.9
  Disorder of arteries and arterioles, unspecified
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  - peripheral I73.9
- peripheral
  - arterial I73.9
  - vascular NOS I73.9
- vascular I99.9
  ICD-10-CM Diagnosis Code I99.9
  Unspecified disorder of circulatory system
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  - obliterative I77.1
    ICD-10-CM Diagnosis Code I77.1
    Stricture of artery
    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
    Applicable To
    Narrowing of artery
    - peripheral I73.9
  - peripheral (occlusive) I73.9
- small vessel I73.9
- terminal vessel I73.9
- vasomotor I73.9
- vasospastic I73.9
Disturbance(s) - see also Disease
- vasomotor I73.9
- vasospastic I73.9
Dysbasia R26.2
ICD-10-CM Diagnosis Code R26.2
Difficulty in walking, not elsewhere classified
Type 1 Excludes
falling (R29.6)
unsteadiness on feet (R26.81)
- angiosclerotica intermittens I73.9
Edema, edematous (infectious) (pitting) (toxic) R60.9
ICD-10-CM Diagnosis Code R60.9
Edema, unspecified
Applicable To
Fluid retention NOS
- angiospastic I73.9
Insufficiency, insufficient
- arterial I77.1
  ICD-10-CM Diagnosis Code I77.1
  Stricture of artery
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  Applicable To
  Narrowing of artery
  - peripheral I73.9
- vascular I99.8
  ICD-10-CM Diagnosis Code I99.8
  Other disorder of circulatory system
  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  - peripheral I73.9
- peripheral vascular I73.9 (arterial)
Labile
- vasomotor system I73.9
Microangiopathy (peripheral) I73.9
Phenomenon
- vasospastic I73.9
Reflex R29.2
ICD-10-CM Diagnosis Code R29.2
Abnormal reflex
Type 2 Excludes
abnormal pupillary reflex (H57.0)
hyperactive gag reflex (J39.2)
vasovagal reaction or syncope (R55)
- vasoconstriction I73.9
Spasm(s) R25.2
- see also condition
ICD-10-CM Diagnosis Code R25.2
Cramp and spasm
Type 2 Excludes
carpopedal spasm (R29.0)
charley-horse (M62.831)
infantile spasms (G40.4-)
muscle spasm of back (M62.830)
muscle spasm of calf (M62.831)
- artery I73.9
- vascular I73.9
- vasomotor I73.9
Syndrome - see also Disease
- Charcot's I73.9 (angina cruris) (intermittent claudication)
- vasomotor I73.9
Vascular - see also condition
- spasm I73.9
Vasodilation I73.9
Vasospasm (vasoconstriction) I73.9
- peripheral NOS I73.9

ICD-10-CM Codes Adjacent To I73.9

I72.8 Aneurysm of other specified arteries

I72.9 Aneurysm of unspecified site

I73 Other peripheral vascular diseases

I73.0 Raynaud's syndrome

I73.00 …… without gangrene

I73.01 …… with gangrene

I73.1 Thromboangiitis obliterans [Buerger's disease]

I73.8 Other specified peripheral vascular diseases

I73.81 Erythromelalgia

I73.89 Other specified peripheral vascular diseases

I73.9 Peripheral vascular disease, unspecified

I74 Arterial embolism and thrombosis

I74.0 Embolism and thrombosis of abdominal aorta

I74.01 Saddle embolus of abdominal aorta

I74.09 Other arterial embolism and thrombosis of abdominal aorta

I74.1 Embolism and thrombosis of other and unspecified parts of aorta

I74.10 Embolism and thrombosis of unspecified parts of aorta

I74.11 Embolism and thrombosis of thoracic aorta

I74.19 Embolism and thrombosis of other parts of aorta

I74.2 Embolism and thrombosis of arteries of the upper extremities

I74.3 Embolism and thrombosis of arteries of the lower extremities

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 I73.9

Peripheral vascular disease, unspecified

Atherosclerosis of native arteries of the extremities

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

Diseases of the circulatory system

Other peripheral vascular diseases

Angina pectoris, unspecified

Unspecified disorder of circulatory system

Disorder of arteries and arterioles, unspecified

Disorder of arteries and arterioles, unspecified

Unspecified disorder of circulatory system

Stricture of artery

Difficulty in walking, not elsewhere classified

Edema, unspecified

Stricture of artery

Other disorder of circulatory system

Abnormal reflex

Cramp and spasm