2026 ICD-10-CM Diagnosis Code B37.83Candidal cheilitis

ICD-10-CM Codes›A00–B99›B35-B49›B37

ICD-10-CM B37.83
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

B37.83 is a billable ICD-10-CM diagnosis code for candidal cheilitis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 11 through 13, 157 through 159, 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 23 closely related codes. Coders also document this condition as angular cheilitis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Any dental condition including traumatic injury; Caries, periodontitis, and other preventable dental conditions; and Diseases of mouth; excluding dental.

Code Identity

ICD-10-CM Code
B37.83
Billable Status
Yes — Valid for Submission
Code Describes
Candidal cheilitis
Short Description
Candidal cheilitis
Same as the full description in the CMS dataset.
Parent Code
B37.8
Candidiasis of other sites

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB35-B49Mycoses
CategoryB37Candidiasis
This CodeB37.83Candidal cheilitis

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Angular cheilitis
  • Candida angular cheilitis
  • Cheilitis caused by Candida species

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 DEN001
Any dental condition including traumatic injury
Default principal diagnosis: inpatient No · outpatient No
CCSR DEN003
Caries, periodontitis, and other preventable dental conditions
Default principal diagnosis: inpatient No · outpatient No
CCSR DIG003
Diseases of mouth; excluding dental
Default principal diagnosis: inpatient Yes · outpatient Yes
CCSR INF004
Fungal infections
Default principal diagnosis: inpatient No · outpatient No
CCSR DEN002
Nontraumatic dental conditions
Default principal diagnosis: inpatient No · outpatient No

Patient EducationClinical

Mouth Disorders

Your mouth is one of the most important parts of your body. It has many different functions. It allows you to:

Read the full article at MedlinePlus

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

Convert B37.83 to ICD-9-CMHistory

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

ICD-9-CM
112.0 Thrush
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 B37.83Overview

What is the ICD-10 code for candidal cheilitis?

The ICD-10-CM code for candidal cheilitis is B37.83 (sometimes written as B3783). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Is B37.83 (Candidiasis of other sites) a billable code?

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

What MS-DRG does B37.83 group to?

When candidal cheilitis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 11, 12, 13, 157, 158, 159, 974, 975, 976, with relative weights from 0.7085 to 5.4541 depending on complications. Higher weights mean higher Medicare reimbursement.

Is B37.83 a CC or MCC?

CMS lists B37.83 as a CC (complication or comorbidity) for FY 2026. 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 23 closely related codes in its exclusion list.

What is the ICD-9 equivalent of B37.83?

Under the General Equivalence Mappings, candidal cheilitis converts to ICD-9-CM 112.0 (thrush). The mapping is approximate, so confirm the match fits the documentation.