R20-R23
Symptoms and signs involving the skin and subcutaneous tissue
Symptoms and signs involving the skin and subcutaneous tissue (R20-R23) is a block within ICD-10-CM Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified. It holds 4 categories.
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- symptoms relating to breast (N64.4-N64.5)
Categories in R20-R23
- R20Disturbances of skin sensationcategory
- R21Rash and other nonspecific skin eruption
- R22Localized swelling, mass and lump of skin, subcucategory
- R23Other skin changescategory
Source
ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.