ICD-10-CM 2027 diagnosis code

R23Other skin changes

Not billable — use a more specific code

R23 is a header code, so it can't be reported by itself. Choose one of the 7 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About R23

R23 is the ICD-10-CM diagnosis code for other skin changes. It belongs to block R20-R23 (symptoms and signs involving the skin and subcutaneous tissue) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: R23.0 (Cyanosis), R23.1 (Pallor), R23.2 (Flushing), R23.3 (ecchymoses), R23.4 (texture), R23.8 (changes) and R23.9 (changes).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under R23

Notes that apply from higher levels

Instructions written at a parent level also apply to R23.

Broader instructions also apply from R20-R23 Symptoms and signs involving the skin and subcutaneous tissue and Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about R23

Is R23 billable?: No. R23 is a header code. Report one of its more specific subcodes instead.