D03.21
✓ Billable
Melanoma in situ of right ear and external auricular canal
ICD-10-CM · FY2026 · Neoplasms
Code
D03.21
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Neoplasms
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code D03.21?
ICD-10-CM code D03.21 represents Melanoma in situ of right ear and external auricular canal. It is a billable diagnosis code in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.
Is D03.21 billable?
Yes. D03.21 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is D03.21 in?
D03.21 belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.
Related codes in the D03 category
D03
Melanoma in situ
Non-billable
D03.0
Melanoma in situ of lip
Billable
D03.1
Melanoma in situ of eyelid, including canthus
Non-billable
D03.2
Melanoma in situ of ear and external auricular canal
Non-billable
D03.3
Melanoma in situ of other and unspecified parts of face
Non-billable
D03.4
Melanoma in situ of scalp and neck
Billable
D03.5
Melanoma in situ of trunk
Non-billable
D03.6
Melanoma in situ of upper limb, including shoulder
Non-billable
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