K82.A1 — Gangrene of gallbladder in cholecystitis
K82.A1 is a billable, specific ICD-10-CM code for gangrene of gallbladder in cholecystitis. It is valid for submission on a claim.
Risk adjustment
K82.A1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
K82.A1 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53057Billing and Coding: Home Health Occupational Therapy
- A53064Billing and Coding: Outpatient Occupational Therapy
- A55336Billing and Coding: Retroperitoneal Ultrasound
- A56421Billing and Coding: CT of the Abdomen and Pelvis
How K82.A1 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to K82.A1.
- Cholecystitis›with›gangrene of gallbladder
Related codes at this level
Codes that share K82.A. If K82.A1 is not quite right, the correct code is usually one of these.
Questions about K82.A1
- Is K82.A1 a billable ICD-10-CM code?
- Yes. K82.A1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does K82.A1 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Disorders of gallbladder, biliary tract and pancreas (K80-K87).