2026 ICD-10-CM Diagnosis Code B37.42Candidal balanitis

ICD-10-CM Codes›A00–B99›B35-B49›B37

ICD-10-CM B37.42
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

B37.42 is a billable ICD-10-CM diagnosis code for candidal balanitis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 727 through 728. Coders also document this condition as balanoposthitis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Fungal infections and Inflammatory conditions of male genital organs.

Code Identity

ICD-10-CM Code
B37.42
Billable Status
Yes — Valid for Submission
Code Describes
Candidal balanitis
Short Description
Candidal balanitis
Same as the full description in the CMS dataset.
Parent Code
B37.4
Candidiasis of other urogenital sites

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB35-B49Mycoses
CategoryB37Candidiasis
This CodeB37.42Candidal balanitis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Balanoposthitis
  • Candidal balanitis
  • Candidal balano-posthitis
  • Posthitis

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Balanitis(circinata) (erosiva) (gangrenosa) (phagedenic) (vulgaris)
      • candidal
    • Candidiasis, candidal
      • balanitis

Clinical ClassificationClinical

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

CCSR INF004
Fungal infections
Default principal diagnosis: inpatient No · outpatient No
CCSR GEN013
Inflammatory conditions of male genital organs
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Penis Disorders

Problems with the penis can cause pain and affect a man's sexual function and fertility. Penis disorders include:

Read the full article at MedlinePlus

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

Convert B37.42 to ICD-9-CMHistory

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

ICD-9-CM
112.2 Candidias urogenital 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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About B37.42Overview

Is B37.42 (Candidiasis of other urogenital sites) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report candidal balanitis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does B37.42 group to?

When candidal balanitis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 727, 728, with relative weights from 0.8112 to 1.4829 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of B37.42?

Under the General Equivalence Mappings, candidal balanitis converts to ICD-9-CM 112.2 (candidias urogenital NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.