B37.83 ICD-10-CM Code: Candidal cheilitis

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for B37.83 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on B37.83 itself; “inherited from” names the category or block whose note applies here.

Coder workflow for B37.83

MedCoder structured workflow — derived from this code’s own official record

Before you code B37.83

1. Check the Excludes1 note: if the documentation supports a condition named there, do not simply proceed with B37.83. Excludes1 conditions are not reported together with this code unless the record shows they are unrelated (Guidelines I.A.12.a).

   See the official tabular notes

Choose the right path

1. Does the documentation support a condition named in B37.83’s Excludes1 note?
   Yes → Do not simply proceed: review the excluded code. Both are reported only when the record shows the two conditions are unrelated.
   No → Continue.

   ReviewP37.5

Consider B37.83. Then confirm the code is valid for the date of service in the Verify section.

Documentation check

The provider’s diagnostic statement

Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).

Official instructions as workflow

• Excludes1 — check before selecting B37.83(1 note)

  Coding workflow: If the documentation supports a condition named in this note, do not simply proceed with B37.83: the two are not reported together. The one exception is when the record shows the two conditions are unrelated to each other.

  CompareP37.5

  See the official tabular notes · Guidelines I.A.12.a

• Excludes2 — not part of B37.83(2 notes)

  Coding workflow: The conditions named in this note are not included in B37.83. When the record documents both, both may be reported; the note is a boundary, not a prohibition.

  CompareJ67, C84.0

  See the official tabular notes · Guidelines I.A.12.b

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Indexed Clinical Terms (4)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

• Candidiasis, candidal, cheilitis
• Cheilitis (acute) (angular) (catarrhal) (chronic) (exfoliative) (gangrenous) (glandular) (infectional) (suppurative) (ulcerative) (vesicular), candidal
• Perlèche NEC, due to, candidiasis
• Perlèche NEC, due to, moniliasis

Don’t confuse B37.83 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of B37.83 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

• P37.5— Excludes1 conflict (Excludes1 — generally not reported together)

  Not coded here — the tabular list excludes this pair for the same encounter.

  Not reported together with this code, except where the two conditions are documented as unrelated.

  What moves you there: Documentation of neonatal candidiasis moves the case to P37.5; the two are not reported together unless documented as unrelated.

  Full comparison: B37.83 vs P37.5 →

• J67— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  What moves you there: Documentation of hypersensitivity pneumonitis due to organic dust adds J67; it is not part of this code and both may be reported when both are documented.

  Full comparison: B37.83 vs J67 →

• C84.0— Excludes2 relationship (Informational)

  Distinct conditions — both may be reported.

  A distinct condition — both may be reported when both are documented.

  What moves you there: Documentation of mycosis fungoides adds C84.0; it is not part of this code and both may be reported when both are documented.

  Full comparison: B37.83 vs C84.0 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Verify Before Coding

• CC as a secondary diagnosis (FY2026). Can raise the stay's MS-DRG severity tier.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

Other codes that name B37.83 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

Referenced by 1 Excludes1 note: K13.0 — Diseases of lips.

These codes’ tabular lists mark this diagnosis as mutually exclusive — not reported together unless the conditions are documented as unrelated.

Referenced by 1 Code First instruction: M01 — Direct infections of joint in infectious and parasitic diseases classified elsewhere (via B37.-).

Each of these codes carries a Code First note naming this condition — when that code is reported, THIS code is sequenced first, ahead of it.

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 MS-DRG: CC — Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 23 clinically related codes on its CMS exclusion list. Does not count toward severity when the stay groups to DRGs 974-976 (HIV with Major Related Condition).

Named in the grouper logic of 9 MS-DRGs: DRG 011 (MDC PRE), DRG 012 (MDC PRE), DRG 013 (MDC PRE), DRG 157 (MDC 03), DRG 158 (MDC 03), DRG 159 (MDC 03), DRG 974 (MDC 25), DRG 975 (MDC 25), DRG 976 (MDC 25).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):DIG003 — Diseases of mouth; excluding dental (default); DEN001 — Any dental condition including traumatic injury; DEN002 — Nontraumatic dental conditions; DEN003 — Caries, periodontitis, and other preventable dental conditions; INF004 — Fungal infections.

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical process (MS-DRG)

Acts as CC — raises the severity of other admissions. CMS groups these diagnoses into one MS-DRG principal-diagnosis exclusion process — a CC/MCC on this list never raises severity when the principal diagnosis is also on it.

B37.2 — Candidiasis of skin and nail, B37.31 — Acute candidiasis of vulva and vagina, B37.32 — Chronic candidiasis of vulva and vagina, B37.41 — Candidal cystitis and urethritis, B37.42 — Candidal balanitis, B37.49 — Other urogenital candidiasis, B37.5 — Candidal meningitis, B37.6 — Candidal endocarditis, B37.7 — Candidal sepsis, B37.81 — Candidal esophagitis, B37.82 — Candidal enteritis, B37.84 — Candidal otitis externa, B37.89 — Other sites of candidiasis, B37.9 — Candidiasis, unspecified, B48.3 — Geotrichosis, B49 — Unspecified mycosis, B92 — Sequelae of leprosy, B94.2 — Sequelae of viral hepatitis, B94.8 — Sequelae of other specified infectious and parasitic diseases, B94.9 — Sequelae of unspecified infectious and parasitic disease, +2 more

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical categories (Diseases of mouth; excluding dental, Any dental condition including traumatic injury, Nontraumatic dental conditions, Caries, periodontitis, and other preventable dental conditions, Fungal infections).

B37.31 — Acute candidiasis of vulva and vagina, B37.32 — Chronic candidiasis of vulva and vagina, B37.41 — Candidal cystitis and urethritis, B37.42 — Candidal balanitis, B37.49 — Other urogenital candidiasis, B37.5 — Candidal meningitis, B37.6 — Candidal endocarditis, B37.7 — Candidal sepsis, B37.81 — Candidal esophagitis, B37.82 — Candidal enteritis, B37.84 — Candidal otitis externa, B37.89 — Other sites of candidiasis, B37.9 — Candidiasis, unspecified, B38.0 — Acute pulmonary coccidioidomycosis, B38.1 — Chronic pulmonary coccidioidomycosis, B38.2 — Pulmonary coccidioidomycosis, unspecified, B38.3 — Cutaneous coccidioidomycosis, B38.4 — Coccidioidomycosis meningitis, B38.7 — Disseminated coccidioidomycosis, B38.81 — Prostatic coccidioidomycosis, +718 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main terms “Perlèche NEC”, “Cheilitis”, “Candidiasis, candidal”; these codes share that main term but sit in a different category of the Tabular List.

E53.0 — Riboflavin deficiency (due to, vitamin B2deficiency), K13.0 — Diseases of lips, L56.8 — Other specified acute skin changes due to ultraviolet radiation (actinic), L59.8 — Other specified disorders of the skin and subcutaneous tissue related to radiation (actinic, other than from sun), P37.5 — Neonatal candidiasis (neonatal)

Lab tests where this diagnosis supports Medicare coverage (NCD)

Medicare's National Coverage Determination (NCD) program lists this diagnosis as medical justification for these lab tests.

HIV Screening Test

Contextual Map

Every relationship of B37.83 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run B37.83 with these 2 related codes in Claim Check

Hierarchy

• A00-B99 — Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99) (A00-B99)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• B35-B49 — Mycoses[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Referenced by Excludes1 notes

• K13.0 — Diseases of lips[Excludes1]: “Perlèche due to candidiasis (B37.83)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Referenced by Code First instructions

• M01 — Direct infections of joint in infectious and parasitic diseases classified elsewhere[Code First](via B37.-): “mycoses (B35-B49)”— CMS ICD-10-CM tabular instructional notes · icd10cm-fy2026

Clinical classification (CCSR)

• DIG003 — Diseases of mouth; excluding dental[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)
• DEN001 — Any dental condition including traumatic injury[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)
• DEN002 — Nontraumatic dental conditions[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)
• DEN003 — Caries, periodontitis, and other preventable dental conditions[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)
• INF004 — Fungal infections[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)

MS-DRG Grouper (9)

• CC — Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (CC). Not counted when the stay groups to DRGs 974-976 (HIV with Major Related Condition).”— CMS MS-DRG Definitions Manual (Appendix C) · FY2026
• DRG 011 — TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITH MCC[MS-DRG]: “TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITH MCC (MDC PRE)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 012 — TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITH CC[MS-DRG]: “TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITH CC (MDC PRE)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 013 — TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITHOUT CC/MCC[MS-DRG]: “TRACHEOSTOMY FOR FACE, MOUTH AND NECK DIAGNOSES OR LARYNGECTOMY WITHOUT CC/MCC (MDC PRE)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 157 — DENTAL AND ORAL DISEASES WITH MCC[MS-DRG]: “DENTAL AND ORAL DISEASES WITH MCC (MDC 03)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 158 — DENTAL AND ORAL DISEASES WITH CC[MS-DRG]: “DENTAL AND ORAL DISEASES WITH CC (MDC 03)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 159 — DENTAL AND ORAL DISEASES WITHOUT CC/MCC[MS-DRG]: “DENTAL AND ORAL DISEASES WITHOUT CC/MCC (MDC 03)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• DRG 974 — HIV WITH MAJOR RELATED CONDITION WITH MCC[MS-DRG]: “HIV WITH MAJOR RELATED CONDITION WITH MCC (MDC 25)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
• and 2 more

MDC crossing

• Pre-MDC[MDC crossing]: “Pre-MDC — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 153 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026
• MDC 03 — Diseases and Disorders of the Ear, Nose, Mouth and Throat[MDC crossing]: “Diseases and Disorders of the Ear, Nose, Mouth and Throat — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs. 5,147 same-MDC procedures group here; browse them on the MDC page.”— CMS MS-DRG Definitions Manual · FY2026

Index entries

• Candidiasis, candidal, cheilitis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Cheilitis (acute) (angular) (catarrhal) (chronic) (exfoliative) (gangrenous) (glandular) (infectional) (suppurative) (ulcerative) (vesicular), candidal[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Perlèche NEC, due to, candidiasis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Perlèche NEC, due to, moniliasis[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (20)

• B37 — Candidiasis[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• B37.0 — Candidal stomatitis[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• B37.1 — Pulmonary candidiasis[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• B37.2 — Candidiasis of skin and nail[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• B37.3 — Candidiasis of vulva and vagina[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• B37.31 — Acute candidiasis of vulva and vagina[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• B37.32 — Chronic candidiasis of vulva and vagina[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• B37.4 — Candidiasis of other urogenital sites[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• and 12 more

Change history

• FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data

CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page

Claim edits Official source data

CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page

Inpatient payment groups Official source data

CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43 Release, file and checksum · Publisher’s page

Change history and date-of-service validity Official source data

CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page

Comparisons, relationships and the contextual map MedCoder structured relationship

Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears

Summary and FAQ answers MedCoder explanation

Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Nearest Codes in This Family

Official ICD-10-CM classifications closest to B37.83 in its code family, with their registry titles.

• B37.49 — Other urogenital candidiasis
• B37.5 — Candidal meningitis
• B37.6 — Candidal endocarditis
• B37.7 — Candidal sepsis
• B37.8 — Candidiasis of other sites
• B37.81 — Candidal esophagitis
• B37.82 — Candidal enteritis
• B37.84 — Candidal otitis externa
• B37.89 — Other sites of candidiasis
• B37.9 — Candidiasis, unspecified

View all codes in the B37 family