ICD-10-CM 2027
ICD-10 code for Angiospasm
From the official ICD-10-CM alphabetic index entry “Angiospasm (peripheral) (traumatic) (vessel)”. Page updated September 29, 2026.
About coding Angiospasm
The ICD-10-CM code for Angiospasm is I73.9 (Peripheral vascular disease, unspecified). The official index lists 5 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I73.9.
Within I73, choose I73.9 (Peripheral vascular disease, unspecified) only when documentation doesn't support a more specific option: Raynaud's syndrome (I73.0), Thromboangiitis obliterans [Buerger's disease] (I73.1) and other specified peripheral vascular diseases (I73.8).
Don't report I73.9 together with the conditions in its Excludes1 note: atherosclerosis of the extremities (I70.2--I70.7-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific Angiospasm codes (official index)
- brachial plexus G54.0 — Brachial plexus disorders
- cerebral G45.9 — Transient cerebral ischemic attack, unspecified
- cervical plexus G54.2 — Cervical root disorders, not elsewhere classified
- nerve
- arm
- axillary G54.0 — Brachial plexus disorders
- median
- ulnar
- axillary G54.0 — Brachial plexus disorders
- leg
- median
- plantar
- ulnar
Don't confuse with (Excludes1 for I73.9)
Common questions about Angiospasm ICD-10 codes
What is the ICD-10 code for Angiospasm?
- I73.9 — Peripheral vascular disease, unspecified. More specific codes apply when the documentation supports them: G54.0, G45.9, G54.2, G54.0 and others below.
What is the ICD-10 code for brachial plexus angiospasm?
- G54.0 — Brachial plexus disorders.
What is the ICD-10 code for cerebral angiospasm?
- G45.9 — Transient cerebral ischemic attack, unspecified.
What is the ICD-10 code for cervical plexus angiospasm?
- G54.2 — Cervical root disorders, not elsewhere classified.
Is I73.9 billable?
- Yes. I73.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I73.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I73.9 as a principal diagnosis.
Is I73.9 a CC or MCC?
- No. I73.9 is neither a CC nor an MCC under MS-DRG v44.0.