Carcinoma in situ of skin
In In situ neoplasms (D00-D09), chapter 2: Neoplasms
21 billable codes under D04: none are a CC or MCC; none map to an HCC.
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Instructional notes
Also applies, from In situ neoplasms (D00-D09)
These notes sit on D00-D09 and apply to every code under it, including D04.
Includes: conditions that are coded here
- Bowen's disease
- erythroplasia
- grade III intraepithelial neoplasia
- Queyrat's erythroplasia
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Rules for coding benign and malignant neoplasms: using the Neoplasm Table, sequencing primary and secondary sites, treatment encounters, complications, and current cancer versus personal history.
- Admission/Encounter for treatment of primary site (page 33)
- Admission/Encounter for treatment of secondary site (page 33)
- Coding and sequencing of complications (page 34)
- Primary malignancy previously excised (page 34)
- Admissions/Encounters involving antineoplastic chemotherapy, immunotherapy and radiation therapy (page 35)
- Admission/encounter to determine extent of malignancy (page 36)
- Symptoms, signs, and abnormal findings listed in Chapter 18 associated with neoplasms (page 36)
- Admission/encounter for pain control/management (page 36)
All codes under D04
D04 can't be used on a claim. Pick a billable code below; grey headings group them.
- D04.0Carcinoma in situ of skin of lip
- D04.1Carcinoma in situ of skin of eyelid, including canthus
- D04.10Carcinoma in situ of skin of unspecified eyelid, including canthus
- D04.11Carcinoma in situ of skin of right eyelid, including canthus
- D04.111Carcinoma in situ of skin of right upper eyelid, including canthus
- D04.112Carcinoma in situ of skin of right lower eyelid, including canthus
- D04.12Carcinoma in situ of skin of left eyelid, including canthus
- D04.121Carcinoma in situ of skin of left upper eyelid, including canthus
- D04.122Carcinoma in situ of skin of left lower eyelid, including canthus
- D04.2Carcinoma in situ of skin of ear and external auricular canal
- D04.20Carcinoma in situ of skin of unspecified ear and external auricular canal
- D04.21Carcinoma in situ of skin of right ear and external auricular canal
- D04.22Carcinoma in situ of skin of left ear and external auricular canal
- D04.3Carcinoma in situ of skin of other and unspecified parts of face
- D04.30Carcinoma in situ of skin of unspecified part of face
- D04.39Carcinoma in situ of skin of other parts of face
- D04.4Carcinoma in situ of skin of scalp and neck
- D04.5Carcinoma in situ of skin of trunk
- D04.6Carcinoma in situ of skin of upper limb, including shoulder
- D04.60Carcinoma in situ of skin of unspecified upper limb, including shoulder
- D04.61Carcinoma in situ of skin of right upper limb, including shoulder
- D04.62Carcinoma in situ of skin of left upper limb, including shoulder
- D04.7Carcinoma in situ of skin of lower limb, including hip
- D04.70Carcinoma in situ of skin of unspecified lower limb, including hip
- D04.71Carcinoma in situ of skin of right lower limb, including hip
- D04.72Carcinoma in situ of skin of left lower limb, including hip
- D04.8Carcinoma in situ of skin of other sites
- D04.9Carcinoma in situ of skin, unspecified
D04 MS-DRGs
As the principal diagnosis, the billable codes under D04 group to MS-DRG 606, 607, 124, or 125 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 606 Minor Skin Disorders with MCC (16 of 21 codes)
- DRG 607 Minor Skin Disorders without MCC (16 of 21 codes)
- DRG 124 Other Disorders of the Eye with MCC or Thrombolytic Agent (5 of 21 codes)
- DRG 125 Other Disorders of the Eye without MCC (5 of 21 codes)
Other codes that refer to D04
Notes on these codes point to D04.
- Z86.007 Includes: Conditions classifiable to D04
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Skin Cancer
Skin cancer is the most common form of cancer in the United States. The two most common types are basal cell cancer and squamous cell cancer. They usually form on the head, face, neck, hands, and arms. Another type of skin cancer, melanoma, is more dangerous but less common.
Read more about skin cancer on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.