ICD-10-CM 2027 diagnosis code

B56African trypanosomiasis

Not billable — use a more specific code

B56 is a header code, so it can't be reported by itself. Choose one of the 3 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 B56

B56 is the ICD-10-CM diagnosis code for African trypanosomiasis. It belongs to block B50-B64 (protozoal diseases) and chapter 1 (certain infectious and parasitic diseases). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: B56.0 (trypanosomiasis), B56.1 (trypanosomiasis) and B56.9 (unspecified).

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 B56

Notes that apply from higher levels

Instructions written at a parent level also apply to B56.

Broader instructions also apply from B50-B64 Protozoal diseases and Chapter 1: Certain infectious and parasitic diseases.

Codes whose notes reference B56

F02Code first
G02Code first

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about B56

Is B56 billable?: No. B56 is a header code. Report one of its more specific subcodes instead.