ICD-10-CM D04: Carcinoma in situ of skin

ICD-10-CM Diagnosis Code (2025)

Official Description for D04

Carcinoma in situ of skin

Coding Notes & Guidelines for D04

Excludes1: Not Coded Here
  • erythroplasia of Queyrat (penis) NOS (D07.4)
  • melanoma in situ (D03.-)
Excludes1: Not Coded Here
  • carcinoma in situ of anus NOS (D01.3)
  • carcinoma in situ of scrotum (D07.61)
  • carcinoma in situ of skin of genital organs (D07.-)
Excludes2: Not Included Here

carcinoma in situ of vermilion border of lip (D00.01)

Inclusion Terms
  • Carcinoma in situ of anal margin
  • Carcinoma in situ of anal skin
  • Carcinoma in situ of perianal skin
  • Carcinoma in situ of skin of breast

Child Codes (More Specific Codes for D04):

D04.0 - Carcinoma in situ of skin of lip D04.1 - Carcinoma in situ of skin of eyelid, including canthus D04.10 - Carcinoma in situ of skin of unspecified eyelid, including canthus D04.11 - Carcinoma in situ of skin of right eyelid, including canthus D04.111 - Carcinoma in situ of skin of right upper eyelid, including canthus D04.112 - Carcinoma in situ of skin of right lower eyelid, including canthus D04.12 - Carcinoma in situ of skin of left eyelid, including canthus D04.121 - Carcinoma in situ of skin of left upper eyelid, including canthus D04.122 - Carcinoma in situ of skin of left lower eyelid, including canthus D04.2 - Carcinoma in situ of skin of ear and external auricular canal D04.20 - Carcinoma in situ of skin of unspecified ear and external auricular canal D04.21 - Carcinoma in situ of skin of right ear and external auricular canal D04.22 - Carcinoma in situ of skin of left ear and external auricular canal D04.3 - Carcinoma in situ of skin of other and unspecified parts of face D04.30 - Carcinoma in situ of skin of unspecified part of face D04.39 - Carcinoma in situ of skin of other parts of face D04.4 - Carcinoma in situ of skin of scalp and neck D04.5 - Carcinoma in situ of skin of trunk D04.6 - Carcinoma in situ of skin of upper limb, including shoulder D04.60 - Carcinoma in situ of skin of unspecified upper limb, including shoulder D04.61 - Carcinoma in situ of skin of right upper limb, including shoulder D04.62 - Carcinoma in situ of skin of left upper limb, including shoulder D04.7 - Carcinoma in situ of skin of lower limb, including hip D04.70 - Carcinoma in situ of skin of unspecified lower limb, including hip D04.71 - Carcinoma in situ of skin of right lower limb, including hip D04.72 - Carcinoma in situ of skin of left lower limb, including hip D04.8 - Carcinoma in situ of skin of other sites D04.9 - Carcinoma in situ of skin, unspecified

About ICD-10-CM Code D04 (Carcinoma in situ of skin)

ICD-10-CM code D04 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM D04 became effective on October 1, 2024.

This page provides detailed information about D04 - Carcinoma in situ of skin. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Carcinoma in situ of skin.