2027 ICD-10-CM Diagnosis Code B38.89Other forms of coccidioidomycosis

ICD-10-CM Codes›A00–B99›B35-B49›B38

ICD-10-CM B38.89
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

B38.89 is a billable ICD-10-CM diagnosis code for other forms of coccidioidomycosis. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 791, 793, 867 through 869, 974 through 976. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 9 closely related codes. Coders also document this condition as chorioretinitis with coccidioidmycosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Fungal infections.

Code Identity

ICD-10-CM Code
B38.89
Billable Status
Yes — Valid for Submission
Code Describes
Other forms of coccidioidomycosis
Short Description
Other forms of coccidioidomycosis
Same as the full description in the CMS dataset.
Parent Code
B38.8
Other forms of coccidioidomycosis

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB35-B49Mycoses
CategoryB38Coccidioidomycosis
This CodeB38.89Other forms of coccidioidomycosis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Chorioretinitis with coccidioidmycosis
  • Coccidioides infection of the central nervous system
  • Coccidioidomycosis of bone
  • Coccidioidomycosis of joint
  • Fungal chorioretinitis
  • Fungal choroiditis
  • Myelitis caused by Coccidioides
  • Myelitis caused by fungus
  • Primary extrapulmonary coccidioidomycosis
  • Progressive coccidioidomycosis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to B38.89: its own notes plus those printed at block B35-B49 and Chapter 1. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • diseases generally recognized as communicable or transmissible

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block B35-B49 Mycoses applies to 104 codes
  • hypersensitivity pneumonitis due to organic dust (J67.-)
  • mycosis fungoides (C84.0-)
From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • code to identify resistance to antimicrobial drugs (Z16.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INF004
Fungal infections
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Coccidioidomycosis

    infection with a fungus of the genus coccidioides, endemic to the southwestern united states. it is sometimes called valley fever but should not be confused with rift valley fever. infection is caused by inhalation of airborne, fungal particles known as arthroconidia, a form of fungal spores. a primary form is an acute, benign, self-limited respiratory infection. a secondary form is a virulent, severe, chronic, progressive granulomatous disease with systemic involvement. it can be detected by use of coccidioidin.

Patient EducationClinical

Valley Fever

Valley Fever is a disease caused by a fungus (or mold) called Coccidioides. The fungi live in the soil of dry areas like the southwestern U.S. You get it from inhaling the spores of the fungus. The infection cannot spread from person to person.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert B38.89 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
114.3 Progress coccidioid NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About B38.89Overview

What is the ICD-10 code for other forms of coccidioidomycosis?

The ICD-10-CM code for other forms of coccidioidomycosis is B38.89 (sometimes written as B3889). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is B38.89 (Other forms of coccidioidomycosis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other forms of coccidioidomycosis on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does B38.89 group to?

When other forms of coccidioidomycosis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, 974, 976, 975, 867, 869, 868, with relative weights from 0.6784 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.

Is B38.89 a CC or MCC?

CMS lists B38.89 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 9 closely related codes in its exclusion list.

What is the ICD-9 equivalent of B38.89?

Under the General Equivalence Mappings, other forms of coccidioidomycosis converts to ICD-9-CM 114.3 (progress coccidioid NEC). The mapping is approximate, so confirm the match fits the documentation.