I96Gangrene, not elsewhere classified

I96 is the ICD-10-CM diagnosis code for gangrene, not elsewhere classified. It belongs to block I95-I99 (other and unspecified disorders of the circulatory system) and chapter 9 (diseases of the circulatory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Don't report I96 together with the conditions in its Excludes1 note: gangrene in atherosclerosis of native arteries of the extremities (I70.26), gangrene in hernia (K40.1, K40.4, K41.1, K41.4, K42.1, K43.1-, K44.1, K45.1, K46.1), gangrene in other peripheral vascular diseases (I73.-), gangrene of certain specified sites - see Alphabetical Index and 2 more.

The conditions in its Excludes2 note aren't part of I96, but may be coded alongside it if the patient has both: gangrene in diabetes mellitus (E08-E13 with .52).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

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), DRG 301 (Peripheral Vascular Disorders without CC/MCC, relative weight 0.7133), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 05 (Diseases and Disorders of the Circulatory System) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 785.4 (gangrene).