K83.9 — Disease of biliary tract, unspecified
K83.9 is a billable, specific ICD-10-CM code for disease of biliary tract, unspecified. It is valid for submission on a claim.
Risk adjustment
K83.9 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
K83.9 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56389Billing and Coding: Upper Gastrointestinal Endoscopy and Visualization
- A56421Billing and Coding: CT of the Abdomen and Pelvis
- A57414Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)
- A57484Billing and Coding: Vitamin D Assay Testing
How K83.9 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 K83.9.
- Disease, diseased›bile duct(common) (hepatic)
- Disease, diseased›biliary(tract)
- Disease, diseased›hepatobiliary
Related codes at this level
Codes that share K83. If K83.9 is not quite right, the correct code is usually one of these.
Questions about K83.9
- Is K83.9 a billable ICD-10-CM code?
- Yes. K83.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does K83.9 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Disorders of gallbladder, biliary tract and pancreas (K80-K87).