ICD10
ICD-10 Code D03.5: Melanoma in situ of trunk
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Neoplasms (C00-D49).
When is it used?
- May be used when a clinician documents melanoma in situ of trunk in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
2Neoplasms (C00-D49)
block
D00-D09In situ neoplasms
category
D03Melanoma in situ
currentD03
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
OncologistGeneral Physician
Related codes
Sibling codes
D03.0Melanoma in situ of lipbillableD03.1Melanoma in situ of eyelid, including canthusD03.2Melanoma in situ of ear and external auricular canalD03.3Melanoma in situ of other and unspecified parts of faceD03.4Melanoma in situ of scalp and neckbillableD03.6Melanoma in situ of upper limb, including shoulderD03.7Melanoma in situ of lower limb, including hipD03.8Melanoma in situ of other sitesbillableD03.9Melanoma in situ, unspecifiedbillable
Mapped diagnoses and classifications
SNOMED_CT 15951381000119109high
Bilateral melanoma in situ of skin of breasts
Source: SNOMED International ICD-10 map
SNOMED_CT 16782851000119103high
Melanoma in situ of anal skin
Source: SNOMED International ICD-10 map
SNOMED_CT 315230006high
Melanoma in situ of back
Source: SNOMED International ICD-10 map
SNOMED_CT 109288006high
Melanoma in situ of perianal skin
Source: SNOMED International ICD-10 map
SNOMED_CT 109286005high
Melanoma in situ of skin of breast
Source: SNOMED International ICD-10 map
SNOMED_CT 15951341000119104high
Melanoma in situ of skin of left breast
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
D03.5
Replacement codes
D03.51 — Melanoma in situ of anal skinD03.52 — Melanoma in situ of breast (skin) (soft tissue)D03.59 — Melanoma in situ of other part of trunk
Common synonyms
Melanoma in situ of trunk
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.