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).

What cannot be coded together with K82.A1?

K82.A1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above K82.A1 (K82) and apply to it just the same.

K82.A1

K82.A1 — Gangrene of gallbladder in cholecystitis

Billable / specific codeICD-10-CM

K82.A1 is a billable, specific ICD-10-CM code for gangrene of gallbladder in cholecystitis. It is valid for submission on a claim.

Excludes1 inherited from the categories above K82.A1

These are not written on K82.A1, but they bind it: a note on a category applies to every code beneath it. Billing K82.A1 with anything listed here is a denial.

Written on K82 — Other diseases of gallbladder

nonvisualization of gallbladder (R93.2)
postcholecystectomy syndrome (K91.5)

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

Code history

K82.A1 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

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.

K82.A2Perforation of gallbladder in cholecystitis

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).
What cannot be coded together with K82.A1?: K82.A1 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above K82.A1 (K82) and apply to it just the same.