K73.9 — Chronic hepatitis, unspecified
K73.9 is a billable, specific ICD-10-CM code for chronic hepatitis, unspecified. It is valid for submission on a claim.
Risk adjustment
K73.9 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 65 Chronic Hepatitis0.185 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
K73.9 is named in 8 Medicare coverage policies — 8 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56421Billing and Coding: CT of the Abdomen and Pelvis
- A56669Billing and Coding: Hospice - Liver Disease
- A56767Billing and Coding: Heavy Metal Testing
- A57063Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy
How K73.9 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 K73.9.
- Hepatitis›chronic
- Inflammation, inflamed, inflammatory›liver›chronic
Related codes at this level
Codes that share K73. If K73.9 is not quite right, the correct code is usually one of these.
Questions about K73.9
- Is K73.9 a billable ICD-10-CM code?
- Yes. K73.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does K73.9 sit in the tabular list?
- Diseases of the digestive system (K00-K95), in the block Diseases of liver (K70-K77).