ICD-10-CM 2027
ICD-10 code for Inflamed or infected varix
Varicose veins of unspecified lower extremity with inflammation
From the official ICD-10-CM alphabetic index entry “Varix (lower limb) › inflamed or infected”. Page updated September 29, 2026.
About coding Inflamed or infected varix
The ICD-10-CM code for Inflamed or infected varix is I83.10 (Varicose veins of unspecified lower extremity with inflammation). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on I83.10.
Within I83.1, choose I83.10 (unspecified lower extremity with inflammation) only when documentation doesn't support a more specific option: right lower extremity with inflammation (I83.11) and left lower extremity with inflammation (I83.12).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 299 (Peripheral Vascular Disorders with MCC, relative weight 1.5842), DRG 300 (Peripheral Vascular Disorders with CC, relative weight 1.0464) and DRG 301 (Peripheral Vascular Disorders without CC/MCC, relative weight 0.7133), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific Inflamed or infected varix codes (official index)
- ulcerated I83.209 — Varicose veins of unspecified lower extremity with both ulcer of unspecified site and inflammation
Common questions about Inflamed or infected varix ICD-10 codes
What is the ICD-10 code for Inflamed or infected varix?
- I83.10 — Varicose veins of unspecified lower extremity with inflammation. More specific codes apply when the documentation supports them: I83.209.
What is the ICD-10 code for ulcerated inflamed or infected varix?
- I83.209 — Varicose veins of unspecified lower extremity with both ulcer of unspecified site and inflammation.
Is I83.10 billable?
- Yes. I83.10 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I83.10 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I83.10 as a principal diagnosis.
Is I83.10 a CC or MCC?
- No. I83.10 is neither a CC nor an MCC under MS-DRG v44.0.