ICD-10-CM
ICD-10 code for Disease, diseased angiospastic: I73.9
The ICD-10-CM index points "Disease, diseased angiospastic" to I73.9, Peripheral vascular disease, unspecified. I73.9 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
Run it in Rivvi
Check every code on your export
Upload a claims or problem-list export. Rivvi flags codes that are not billable, replaced, or unspecified when a specific code exists.
Check my exportFree to start. Opens Rivvi, the AI workspace for healthcare teams.
Index subterms
A header groups codes and is not billed. A billable code is one you can report.
More specific codes in I73
A header groups codes and is not billed. A billable code is one you can report.
- I73Other peripheral vascular diseasesHeader
- I73.0Raynaud's syndromeHeader
- I73.00Raynaud's syndrome without gangreneBillable
- I73.01Raynaud's syndrome with gangreneBillable
- I73.1Thromboangiitis obliterans [Buerger's disease]Billable
- I73.8Other specified peripheral vascular diseasesHeader
- I73.81ErythromelalgiaBillable
- I73.89Other specified peripheral vascular diseasesBillable
- I73.9Peripheral vascular disease, unspecifiedBillable
Excludes1
Excludes1 means these codes are not reported together.
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
From I73. A note on a category applies to every code under it.
Related conditions
Related pages
- I73.9 code detailsNotes, nearby codes, CMS-HCC group
- Category I73Every code under it
- Chapter 9Diseases of the circulatory system
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Disease, diseased angiospastic?
The ICD-10-CM index points "Disease, diseased angiospastic" to I73.9, Peripheral vascular disease, unspecified. I73.9 is a billable code.
Is I73.9 billable?
Yes. I73.9 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to I73.9?
The CDC tabular list gives 1 Excludes1 note (not coded together), 4 Excludes2 notes (may be coded together when both are documented) for I73.9 and the categories above it. They are listed on this page.
What chapter is I73.9 in?
Chapter 9. Diseases of the circulatory system.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.