DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

B46 Zygomycosis

  • Header · not billable

B46 is not billable. The category heads 8 billable codes in FY2027: the 8 codes directly below it.

Index → code

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. B35-B49 Mycoses (B35-B49)
  3. B46 Zygomycosis
Billable codes
8
Subdivisions
8
CC / MCC codes
0 / 8
HCC V28 codes
8
New FY2027
0
Index entries
15

Codes in B46

  1. B46.0
    Pulmonary mucormycosis
    BillableMCC6
  2. B46.1
    Rhinocerebral mucormycosis
    BillableMCC6
  3. B46.2
    Gastrointestinal mucormycosis
    BillableMCC6
  4. B46.3
    Cutaneous mucormycosis
    BillableMCC6
    Inclusion terms 1

    Inclusion terms

    • Subcutaneous mucormycosis
  5. B46.4
    Disseminated mucormycosis
    BillableMCC6
    Inclusion terms 1

    Inclusion terms

    • Generalized mucormycosis
  6. B46.5
    Mucormycosis, unspecified
    BillableMCC6
  7. B46.8
    Other zygomycoses
    BillableMCC6
    Inclusion terms 1

    Inclusion terms

    • Entomophthoromycosis
  8. B46.9
    Zygomycosis, unspecified
    BillableMCC6
    Inclusion terms 1

    Inclusion terms

    • Phycomycosis 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 B35-B49 instructions (Excludes2 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

  • Mucormycosis → B46.5
  • Entomophthoromycosis → B46.8
  • Zygomycosis → B46.9
  • Mucormycosispulmonary → B46.0
  • Mucormycosisrhinocerebral → B46.1
  • Mucormycosisgastrointestinal → B46.2
  • Mucormycosiscutaneous → B46.3
  • Mucormycosisskin → B46.3
  • Mucormycosissubcutaneous → B46.3
  • Mucormycosisdisseminated → B46.4
  • Mucormycosisgeneralized → B46.4
  • Infection, infected, infective (opportunistic)Basidiobolus → B46.8
  • Infection, infected, infective (opportunistic)Conidiobolus → B46.8
  • Infection, infected, infective (opportunistic)Entomophthora → B46.8
  • Zygomycosisspecified NEC → B46.8

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

Hierarchy