B56.0 Gambiense trypanosomiasis

The ICD-10-CM code for Gambiense trypanosomiasis is B56.0 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

1: Certain infectious and parasitic diseases (A00-B99)

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 B56.0:

• Trypanosomiasis › gambiensis, Gambian
• Sickness › sleeping (African) › Gambian
• African › trypanosomiasis › gambian
• Sickness › sleeping (African) › West African
• Trypanosomiasis › by Trypanosoma › brucei gambiense
• Infection, infected, infective (opportunistic) › Trypanosoma › brucei › gambiense
• Trypanosomiasis › African › by Trypanosoma brucei › gambiense
• Sickness › sleeping (African) › by Trypanosoma › brucei › gambiense

Inclusion Terms

• Infection due to Trypanosoma brucei gambiense
• West African sleeping sickness

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

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool