D04.2
D04.2 — Carcinoma in situ of skin of ear and external auricular canal
Non-billable headerICD-10-CM
D04.2 is a non-billable header ICD-10-CM code for carcinoma in situ of skin of ear and external auricular canal. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with D04.2
These codes carry an Excludes1 note pointing at D04.2. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading D04.2 alone.
- D02.3Carcinoma in situ of other parts of respiratory system
Risk adjustment
D04.2 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead D04.2
3 child codes. Green means billable.
Related codes at this level
Codes that share D04. If D04.2 is not quite right, the correct code is usually one of these.
- D04.0Carcinoma in situ of skin of lip
- D04.1Carcinoma in situ of skin of eyelid, including canthus
- D04.3Carcinoma in situ of skin of other and unspecified 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
- D04.7Carcinoma in situ of skin of lower limb, including hip
- D04.8Carcinoma in situ of skin of other sites
- D04.9Carcinoma in situ of skin, unspecified
Questions about D04.2
- Is D04.2 a billable ICD-10-CM code?
- No. D04.2 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does D04.2 sit in the tabular list?
- Neoplasms (C00-D49), in the block In situ neoplasms (D00-D09).