B56.9 African trypanosomiasis, unspecified
The ICD-10-CM code for African trypanosomiasis, unspecified is B56.9 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- B50-B64: Protozoal diseases (B50-B64)
- Category B56
- 4 codes (3 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to B56.9:
- African › trypanosomiasis
- African › sleeping sickness
- Trypanosomiasis › African
- Sickness › sleeping (African)
- Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic) › in (due to) › African trypanosomiasis
- Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) › in (due to) › African trypanosomiasis
- Sickness › sleeping (African) › by Trypanosoma
- Trypanosomiasis › where › African trypanosomiasis is prevalent
Inclusion Terms
- Sleeping sickness NOS
U.S. Hospital Utilization
B56.9 appeared in too few sampled U.S. inpatient stays in 2023 to report a national estimate (AHRQ suppresses counts of 10 or fewer) — a rare inpatient diagnosis.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
HIV Infections (TOC entry)a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19
Infectious agents causing diseases in other chapters (TOC)b. Infectious agents as the cause of diseases classified to other chapters ................................. 22
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026