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D03.30 ICD-10-CM Code: Melanoma in situ of unspecified part of face

D03.30 maps to CMS-HCC V28 23. A source-labeled RAF reference is available. Confirm the documented diagnosis and applicable coding requirements. MEAT criteria · RAF Calculator · HCC Buddy coding tools

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Code lookupD03.30

FY 2026 Apr update / Neoplasms (C00-D49) / In situ neoplasms (D00-D09)

D03.30

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Melanoma in situ of unspecified part of face

Early-stage melanoma (cancer cells confined to the skin surface) on an unspecified area of the face, before it has spread to deeper layers.

Buddy the Bee presenting code insight

Buddy Insight

Melanoma in situ of an unspecified part of the face represents the earliest stage of facial melanoma where atypical melanocytes remain confined to the epidermis, but the specific facial subsite is not documented.

OverviewRisk ModelsCode BookDocumentationAuditNotesEdition comparison

CMS-HCC V28

HCC 23

Coefficient HCC 23: 0.186 (Community Non-Dual Aged (CNA))

CMS-HCC V24

Historical

Historical

Not used for CY2026 payment

ACA/HHS

HCC 013

Code-level coefficient reference

ESRD/PACE

HCC 12

Code-level coefficient reference

RXHCC

HCC 22

Code-level coefficient reference

Code Book Path

Official
D03Melanoma in situD03.3Melanoma in situ of other and unspecified parts of faceD03.30Melanoma in situ of unspecified part of face

Inclusion Terms

Official

No inclusion terms are included in this display for D03.30. Check the code and parent instructions in the Code Book.

Excludes 2

Official

No Excludes 2 notes are included in this display for D03.30. Check the code and parent instructions in the Code Book.

Related Codes

Official
D03.39Melanoma in situ of other parts of face

Includes

Official
  • Bowen's diseaseInherited from D00-D09
  • erythroplasiaInherited from D00-D09
  • grade III intraepithelial neoplasiaInherited from D00-D09
  • Queyrat's erythroplasiaInherited from D00-D09

Excludes 1

Official

No Excludes 1 notes are included in this display for D03.30. Check the code and parent instructions in the Code Book.

Code First

Official

No Code First sequencing instructions are included in this display for D03.30. Check the code and parent instructions in the Code Book.

Use Additional

Official

No Use Additional Code instructions are included in this display for D03.30. Check the code and parent instructions in the Code Book.

Code Also

Official

No Code Also instructions are included in this display for D03.30. Check the code and parent instructions in the Code Book.

Buddy Documentation Tip

HCC Buddy guidance
Biopsy-confirmed melanoma in situ is required.
The provider should document the specific facial area involved (cheek, nose, forehead, temple, chin) to allow use of the more specific D03.39 code.
Include lesion dimensions, dermoscopic features, and margin status after treatment.

MEAT Support

HCC Buddy guidance
Biopsy-confirmed melanoma in situ is required.
The provider should document the specific facial area involved (cheek, nose, forehead, temple, chin) to allow use of the more specific D03.39 code.
Include lesion dimensions, dermoscopic features, and margin status after treatment.

Audit Caution

HCC Buddy guidance
Always attempt to determine the specific facial location before defaulting to this unspecified code.
Lentigo maligna is a clinical term for melanoma in situ of sun-damaged skin and should be coded as melanoma in situ, not as a benign condition.
Query the provider for the exact facial subsite when documentation is vague.

Common Mistakes

HCC Buddy guidance
D03.39 (melanoma in situ of other parts of face) is the preferred code when specific facial location is documented
D03.0 (melanoma in situ of lip) and D03.10-D03.12 (melanoma in situ of eyelid) have their own specific codes
C43.30-C43.39 (invasive melanoma of face) indicates invasion has occurred.

Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Is D03.30 an HCC code?

Yes. D03.30 (Melanoma in situ of unspecified part of face) maps to HCC 23, Prostate, Breast, and Other Cancers and Tumors under the CMS-HCC V28 risk adjustment model, with a source-labeled community non-dual aged reference coefficient of 0.186. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes. It is billable for payment year 2026.

Coder answer: D03.30 is billable and maps to V28 HCC 23, Prostate, Breast, and Other Cancers and Tumors. Open it in the Code Book for the tabular path, RAF, and MEAT checklist.

Code
D03.30
Description
Melanoma in situ of unspecified part of face
HCC (V28)
HCC 23 — Prostate, Breast, and Other Cancers and Tumors
RAF reference coefficient
0.186
Billable
Yes
Payment year
2026

HCC Category Mapping

V28HCC 23, Prostate, Breast, and Other Cancers and Tumors
0.186
ESRDHCC 12, Breast/Prostate/and Other Cancers and Tumors
Not separately weighted
RxHCCHCC 22, Prostate, Breast, Bladder, and Other Cancers and Tumors
Not separately weighted

These are source-labeled model coefficients, not member totals. A category may still be removed by hierarchy or model cleanup rules. Weights are not directly comparable across models: CMS-HCC V28 and V24 use Community, Non-Dual, Aged; ESRD uses the dialysis continuing-enrollee model; RxHCC is the Part D continuing-enrollee, non-low-income, aged weight (a larger scale than CMS-HCC). ACA/HHS has no single weight — it varies by metal level. Actual per-patient RAF contribution depends on member context, hierarchy and cleanup rules, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains available for historical review.

Work D03.30 in the Code Book — tabular path, V28 RAF reference, and MEAT checklist →

MEAT review for D03.30

For D03.30, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule.

  • MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
  • EEvaluate: test results, medication response, or physical findings reviewed by the provider
  • AAssess: explicit mention in the assessment or plan with acknowledgment of status
  • TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis

Coder workflow notes

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What This Code Means

D03.30 is the ICD-10-CM diagnosis code for melanoma in situ of unspecified part of face. Early-stage melanoma (cancer cells confined to the skin surface) on an unspecified area of the face, before it has spread to deeper layers. D03.30 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering in situ neoplasms (d00-d09).

Under the CMS-HCC V28 risk adjustment model, D03.30 maps to Prostate, Breast, and Other Cancers and Tumors (HCC 23) with a source-labeled community, non-dual, aged reference coefficient of 0.186. No V24 mapping is shown for D03.30; use the applicable model and payment year when reviewing the V28 mapping. For CY2026 non-PACE Medicare Advantage, CMS uses 100% of the 2024 CMS-HCC model (V28). PACE uses a separate model blend. Source-labeled code-level coefficients are references, not member totals. Actual contribution depends on complete member context, hierarchy and cleanup rules, interactions, and model year. HCC Buddy's RAF Calculator supports CMS-HCC V28 PY2026 and shows no score unless every required source and calculation check passes.

Use this code when the specific facial location is not documented; if location is specified (cheek, nose, forehead), use D03.39 instead. For D03.30, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.

HCC Buddy maintains structured V28 and V24 mapping, source-labeled coefficient references, and MEAT documentation criteria for D03.30 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • •Use this code when the specific facial location is not documented; if location is specified (cheek, nose, forehead), use D03.39 instead
  • •Melanoma in situ is stage 0 and requires documentation of the exact anatomical site for proper treatment planning

Clinical Significance

Melanoma in situ of an unspecified part of the face represents the earliest stage of facial melanoma where atypical melanocytes remain confined to the epidermis, but the specific facial subsite is not documented. Facial melanoma in situ, particularly lentigo maligna type, is common in elderly patients with chronic sun damage and may present as an irregularly pigmented macule. The face presents unique surgical challenges due to cosmetic and functional considerations.

Documentation Requirements

  • ✓Biopsy-confirmed melanoma in situ is required.
  • ✓The provider should document the specific facial area involved (cheek, nose, forehead, temple, chin) to allow use of the more specific D03.39 code.
  • ✓Include lesion dimensions, dermoscopic features, and margin status after treatment.

Commonly Confused Codes

  • •D03.39 (melanoma in situ of other parts of face) is the preferred code when specific facial location is documented
  • •D03.0 (melanoma in situ of lip) and D03.10-D03.12 (melanoma in situ of eyelid) have their own specific codes
  • •C43.30-C43.39 (invasive melanoma of face) indicates invasion has occurred.

Child Codes

D03.30Melanoma in situ of unspecified part of face
HCC 23
D03.39Melanoma in situ of other parts of face
HCC 23

Code Hierarchy

└D03Melanoma in situ└D03.3Melanoma in situ of other and unspecified parts of face└D03.30Melanoma in situ of unspecified part of face
└D03.30Melanoma in situ of unspecified part of face

Also searched as

  • D03 30
  • D0330

For D03.30, confirm that the documentation supports the diagnosis and meets the applicable coding, encounter, program and payer requirements. MEAT (Monitor, Evaluate, Assess, or Treat) is a review mnemonic, not a universal CMS coding rule.

D03.30 maps to CMS-HCC V28 category 23, Prostate, Breast, and Other Cancers and Tumors. See the ICD-10 to HCC mapping hub for how the V28 crosswalk works. The mapping identifies a payment HCC category for D03.30. Review its source-labeled HCC coefficient above, check the RAF Calculator with complete member context for CMS-HCC V28 PY2026, and confirm the documentation the chart needs before the code is submitted. HCC Buddy shows no RAF score unless every required source and calculation check passes.

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