DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

B38 Coccidioidomycosis

  • Header · not billable

B38 is not billable. The category heads 9 billable codes in FY2027, grouped under 8 subdivisions.

Index → code

  • Valley fever → B38.0
  • Coccidioidomycosis → B38.9
  • Posadas-Wernicke disease → B38.9

Where it sits

  1. Chapter 1 Certain infectious and parasitic diseases (A00-B99)
  2. B35-B49 Mycoses (B35-B49)
  3. B38 Coccidioidomycosis
Billable codes
9
Subdivisions
8
CC / MCC codes
8 / 1
HCC V28 codes
0
New FY2027
0
Index entries
30

Codes in B38

  1. B38.0
    Acute pulmonary coccidioidomycosis
    BillableCC
    Code also 2

    Code also

    • , if applicable:
    • pulmonary mycetoma (J4B) J4B
  2. B38.1
    Chronic pulmonary coccidioidomycosis
    BillableCC
    Code also 2

    Code also

    • , if applicable:
    • pulmonary mycetoma (J4B) J4B
  3. B38.2
    Pulmonary coccidioidomycosis, unspecified
    BillableCC
    Code also 2

    Code also

    • , if applicable:
    • pulmonary mycetoma (J4B) J4B
  4. B38.3
    Cutaneous coccidioidomycosis
    BillableCC
  5. B38.4
    Coccidioidomycosis meningitis
    BillableMCC
  6. B38.7
    Disseminated coccidioidomycosis
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Generalized coccidioidomycosis
  7. B38.8
    Other forms of coccidioidomycosis
    Header
  8. B38.81
    Prostatic coccidioidomycosis
    BillableCC
  9. B38.89
    Other forms of coccidioidomycosis
    BillableCC
  10. B38.9
    Coccidioidomycosis, unspecified
    BillableCC

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

  • San Joaquin (Valley) fever → B38.0
  • Valley fever → B38.0
  • Coccidioidomycosis → B38.9
  • Posadas-Wernicke disease → B38.9
  • Wernicke-Posadas disease → B38.9
  • Desertrheumatism → B38.0
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)desert → B38.0
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)San Joaquin (Valley) → B38.0
  • Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor)valley → B38.0
  • Coccidioidomycosispulmonary → B38.2
  • Coccidioidomycosiscutaneous → B38.3
  • Coccidioidomycosisskin → B38.3
  • Coccidioidomycosismeninges → B38.4
  • Coccidioidomycosisdisseminated → B38.7
  • Coccidioidomycosisgeneralized → B38.7
  • Granulomacoccidioidal (primary) (progressive) → B38.7
  • Coccidioidomycosisprostate → B38.81
  • Coccidioidomycosisspecified NEC → B38.89
  • Californiadisease → B38.9
  • Disease, diseasedPosadas-Wernicke → B38.9
  • Disease, diseasedWernicke-Posadas → B38.9
  • Coccidioidomycosispulmonaryacute → B38.0
  • Coccidioidomycosispulmonarychronic → B38.1
  • Granulomacoccidioidal (primary) (progressive)lung → B38.1
  • Granulomalung (infectious)coccidioidal → B38.1
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)coccidioidomycosis → B38.2
  • Granulomacoccidioidal (primary) (progressive)meninges → B38.4
  • Meningitis (basal) (basic) (brain) (cerebral) (cervical) (congestive) (diffuse) (hemorrhagic) (infantile) (membranous) (metastatic) (nonspecific) (pontine) (progressive) (simple) (spinal) (subacute) (sympathetic) (toxic)in (due to)coccidioidomycosis → B38.4
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)coccidioidomycosisacute → B38.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)coccidioidomycosischronic → B38.1

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

Hierarchy