L89.521 ICD-10-CM Code: Pressure ulcer of left ankle, stage 1

L89.521 is the ICD-10-CM diagnosis code for pressure ulcer of left ankle, stage 1. A stage 1 pressure sore on the left ankle, the mildest form showing redness of the skin that does not blanch (turn white) when pressed. L89.521 sits in the ICD-10-CM chapter for diseases of the skin and subcutaneous tissue (l00-l99), within the section covering other disorders of the skin and subcutaneous tissue (l80-l99).

L89.521 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.

Confirm that the erythema is non-blanching and the skin is intact before assigning this code.