ICD-10-CM 2027
ICD-10 code for Presenile gangrene
From the official ICD-10-CM alphabetic index entry “Gangrene, gangrenous (connective tissue) (dropsical) (dry) (moist) (skin) (ulcer) › presenile”. Page updated September 29, 2026.
About coding Presenile gangrene
The ICD-10-CM code for Presenile gangrene is I73.1 (Thromboangiitis obliterans [Buerger's disease]).
Within I73 (other peripheral vascular diseases), I73.1 is specifically for Thromboangiitis obliterans [Buerger's disease]. Related codes cover Raynaud's syndrome (I73.0), other specified peripheral vascular diseases (I73.8) and peripheral vascular disease, unspecified (I73.9).
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.
Common questions about Presenile gangrene ICD-10 codes
What is the ICD-10 code for Presenile gangrene?
- I73.1 — Thromboangiitis obliterans [Buerger's disease].
Is I73.1 billable?
- Yes. I73.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I73.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I73.1 as a principal diagnosis.
Is I73.1 a CC or MCC?
- No. I73.1 is neither a CC nor an MCC under MS-DRG v44.0.