DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

B56 African trypanosomiasis

  • Header · not billable

B56 is not billable. The category heads 3 billable codes in FY2027: the 3 codes directly below it.

Index → code

  • Africantrypanosomiasis → B56.9
  • TrypanosomiasisAfrican → B56.9
  • Africansleeping sickness → B56.9

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. B50-B64 Protozoal diseases (B50-B64)
  3. B56 African trypanosomiasis
Billable codes
3
Subdivisions
3
CC / MCC codes
3 / 0
HCC V28 codes
0
New FY2027
0
Index entries
26

Codes in B56

  1. B56.0
    Gambiense trypanosomiasis
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • Infection due to Trypanosoma brucei gambiense
    • West African sleeping sickness
  2. B56.1
    Rhodesiense trypanosomiasis
    BillableCC
    Inclusion terms 2

    Inclusion terms

    • East African sleeping sickness
    • Infection due to Trypanosoma brucei rhodesiense
  3. B56.9
    African trypanosomiasis, unspecified
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Sleeping sickness NOS

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

Notes that also apply

Block B50-B64 instructions (Excludes1 2): printed on the block page.

Chapter 1 instructions (Includes 1, Excludes2 5, Use additional code 1): printed on the chapter 1 page.

Index entries

  • Trypanosomiasisgambiensis, Gambian → B56.0
  • Trypanosomiasisrhodesiensis, Rhodesian → B56.1
  • Africansleeping sickness → B56.9
  • Africantrypanosomiasis → B56.9
  • Sicknesssleeping (African) → B56.9
  • TrypanosomiasisAfrican → B56.9
  • Africantrypanosomiasisgambian → B56.0
  • Sicknesssleeping (African)Gambian → B56.0
  • Sicknesssleeping (African)West African → B56.0
  • Trypanosomiasisby Trypanosomabrucei gambiense → B56.0
  • Africantrypanosomiasisrhodesian → B56.1
  • Sicknesssleeping (African)East African → B56.1
  • Sicknesssleeping (African)Rhodesian → B56.1
  • Trypanosomiasisby Trypanosomabrucei rhodesiense → B56.1
  • Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute)in (due to)African trypanosomiasis → B56.9 [G05.3]
  • 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 → B56.9 [G02]
  • Sicknesssleeping (African)by Trypanosoma → B56.9
  • TrypanosomiasiswhereAfrican trypanosomiasis is prevalent → B56.9
  • Infection, infected, infective (opportunistic)Trypanosomabruceigambiense → B56.0
  • TrypanosomiasisAfricanby Trypanosoma bruceigambiense → B56.0
  • Infection, infected, infective (opportunistic)Trypanosomabruceirhodesiense → B56.1
  • TrypanosomiasisAfricanby Trypanosoma bruceirhodesiense → B56.1
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)trypanosomiasisAfrican → B56.9 [F02.80]
  • Sicknesssleeping (African)by Trypanosomabruceigambiense → B56.0
  • Sicknesssleeping (African)by Trypanosomabruceirhodesiense → B56.1
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)in (due to)trypanosomiasisAfricanwith behavioral disturbance → B56.9 [F02.81-]

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy