2020 ICD-10-CM Diagnosis Code I73

Other peripheral vascular diseases

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • I73 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM I73 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of I73 - other international versions of ICD-10 I73 may differ.
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 (I73) and the excluded code together.
  • chilblains (
    ICD-10-CM Diagnosis Code T69.1

    Chilblains

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    T69.1
    )
  • frostbite (T33-T34
    ICD-10-CM Range T33-T34

    Frostbite

    Type 2 Excludes
    • hypothermia and other effects of reduced temperature (T68, T69.-)
    • T33 Superficial frostbite
    • T34 Frostbite with tissue necrosis
    )
  • immersion hand or foot (
    ICD-10-CM Diagnosis Code T69.0

    Immersion hand and foot

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    T69.0-
    )
  • spasm of cerebral artery (
    ICD-10-CM Diagnosis Code G45.9

    Transient cerebral ischemic attack, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Spasm of cerebral artery
    • TIA
    • Transient cerebral ischemia NOS
    G45.9
    )
The following code(s) above I73 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:
  • I00-I99
    2020 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
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
Code annotations containing back-references to I73:
  • Type 1 Excludes: I96
    ICD-10-CM Diagnosis Code I96

    Gangrene, not elsewhere classified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Gangrenous cellulitis
    Type 1 Excludes
    Type 2 Excludes
    • gangrene in diabetes mellitus (E08-E13 with .52)
ICD-10-CM Codes Adjacent To I73
I72 Other aneurysm
I72.0 Aneurysm of carotid artery
I72.1 Aneurysm of artery of upper extremity
I72.2 Aneurysm of renal artery
I72.3 Aneurysm of iliac artery
I72.4 Aneurysm of artery of lower extremity
I72.5 Aneurysm of other precerebral arteries
I72.6 Aneurysm of vertebral artery
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

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