DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

B43 Chromomycosis and pheomycotic abscess

  • Header · not billable

B43 is not billable. The category heads 5 billable codes in FY2027: the 5 codes directly below it.

Index → code

  • Chromomycosis → B43.9
  • Dreschlera (hawaiiensis) (infection) → B43.8
  • Chromomycosisskin → B43.0

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. B35-B49 Mycoses (B35-B49)
  3. B43 Chromomycosis and pheomycotic abscess
Billable codes
5
Subdivisions
5
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
20

Codes in B43

  1. B43.0
    Cutaneous chromomycosis
    Billable
    Inclusion terms 1

    Inclusion terms

    • Dermatitis verrucosa
  2. B43.1
    Pheomycotic brain abscess
    Billable
    Inclusion terms 1

    Inclusion terms

    • Cerebral chromomycosis
  3. B43.2
    Subcutaneous pheomycotic abscess and cyst
    Billable
  4. B43.8
    Other forms of chromomycosis
    Billable
  5. B43.9
    Chromomycosis, unspecified
    Billable

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

  • Dreschlera (hawaiiensis) (infection) → B43.8
  • Chromomycosis → B43.9
  • Chromomycosiscutaneous → B43.0
  • Chromomycosisskin → B43.0
  • Dermatitis (eczematous)verrucosa → B43.0
  • Infection, infected, infective (opportunistic)Fonsecaea (compactum) (pedrosoi) → B43.0
  • Chromomycosisbrain abscess → B43.1
  • Chromomycosiscerebral → B43.1
  • Chromomycosissubcutaneous abscess or cyst → B43.2
  • Cyst (colloid) (mucous) (simple) (retention)subcutaneous, pheomycotic (chromomycotic) → B43.2
  • Chromomycosisspecified NEC → B43.8
  • Infection, infected, infective (opportunistic)Drechslera (hawaiiensis) → B43.8
  • Infection, infected, infective (opportunistic)Cladosporiumcarrionii → B43.0
  • Infection, infected, infective (opportunistic)Phialophoraverrucosa (skin) → B43.0
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)brain (any part) (cystic) (otogenic)pheomycotic (chromomycotic) → B43.1
  • Infection, infected, infective (opportunistic)Cladosporiumbantianum (brain abscess) → B43.1
  • Infection, infected, infective (opportunistic)Cladosporiumtrichoides (brain abscess) → B43.1
  • Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)subcutaneouspheomycotic (chromomycotic) → B43.2
  • Infection, infected, infective (opportunistic)Phialophoragougerotii (subcutaneous abscess or cyst) → B43.2
  • Infection, infected, infective (opportunistic)Phialophorajeanselmei (subcutaneous abscess or cyst) → B43.2

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

Hierarchy