R20-R23: Symptoms and signs involving the skin and subcutaneous tissue
ICD-10-CM 2027 block R20-R23 in chapter 18 (Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified) has 4 categories.
- R20 – Disturbances of skin sensation 6 billable codes
- R21 – Rash and other nonspecific skin eruption Billable code
- R22 – Localized swelling, mass and lump of skin and subcutaneous tissue 12 billable codes
- R23 – Other skin changes 7 billable codes