Symptoms and signs involving the skin and subcutaneous tissue - R20-R23
Excludes2: This note means that the conditions described by two codes are not usually associated with each other but can sometimes occur together.
Type 2 Excludes:
- symptoms relating to breast (N64.4-N64.5)
These ranges represents Categories of Symptoms and signs involving the skin and subcutaneous tissue. The "R20-R23" signifies that these are the diseases within this broad section.