B16 — Acute hepatitis B
Is B16 billable?
No — B16 is a non-billable header code. B16 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 4 billable codes beneath B16.
B16 at a glance
| Code | B16 |
|---|---|
| Description | Acute hepatitis B |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from B15-B19
The conditions below can never be reported together with B16 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- sequelae of viral hepatitis (B94.2)
Use additional code — inherited from Chapter 1
Report an additional code alongside B16 to fully describe the condition. B16 is sequenced first.
- code to identify resistance to antimicrobial drugs (Z16.-)
Excludes2 — not included here — inherited from Chapter 1
The conditions below are not part of B16, but a patient may have both at the same time. When documentation supports it, B16 and the excluded code may both be reported.
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Excludes2 — not included here — inherited from B15-B19
The conditions below are not part of B16, but a patient may have both at the same time. When documentation supports it, B16 and the excluded code may both be reported.
What codes fall under B16? (4)
How long has B16 existed?
B16 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.