D04.60 ICD-10-CM Code: Carcinoma in situ of skin of unspecified upper limb, including shoulder

D04.60 is the ICD-10-CM diagnosis code for carcinoma in situ of skin of unspecified upper limb, including shoulder. This code describes an early stage of skin cancer (carcinoma in situ) found on the upper arm, shoulder, or other parts of the upper limb where the abnormal cells are still confined to the outer layer of skin and have not spread deeper. It is considered a precancerous condition that requires monitoring and treatment to prevent progression to invasive cancer. D04.60 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering in situ neoplasms (d00-d09).

D04.60 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

Use this code only when the specific location on the upper limb is not documented; if the exact site (e.g., shoulder, forearm, hand) is specified, use a more specific D04.6x code with the appropriate fifth character.