Skip to content
Dx

ICD-10-CM 2027 diagnosis code

B17.1Acute hepatitis C

Not billable — use a more specific code

B17.1 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About B17.1

B17.1 is the ICD-10-CM diagnosis code for acute hepatitis C. It belongs to category B17 (other acute viral hepatitis), block B15-B19 (viral hepatitis) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within B17 (other acute viral hepatitis), B17.1 is specifically for acute hepatitis C. Related codes cover acute delta-(super) infection of hepatitis B carrier (B17.0), acute hepatitis E (B17.2), other specified acute viral hepatitis (B17.8) and acute viral hepatitis, unspecified (B17.9).

To report this condition, pick the subcode that matches the documentation: B17.10 (without hepatic coma) and B17.11 (with hepatic coma).

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

Specific codes under B17.1

Notes that apply from higher levels

Instructions written at a parent level also apply to B17.1.

Broader instructions also apply from B15-B19 Viral hepatitis and Chapter 1: Certain infectious and parasitic diseases.

Codes whose notes reference B17.1

  • C22Use additional code

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about B17.1

Is B17.1 billable?

No. B17.1 is a header code. Report one of its more specific subcodes instead.