2026 ICD-10-CM Diagnosis Code R23Other skin changes

ICD-10-CM Codes›R00–R99›R20-R23›R23

ICD-10-CM R23
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R23 is a non-billable ICD-10-CM category code for other skin changes, so it cannot be submitted on claims. Use a more specific code from this category instead, such as R23.0, R23.1, R23.2, and R23.3. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established.

Code Identity

ICD-10-CM Code
R23
Billable Status
No — Non-Billable Category
Code Describes
Other skin changes
Chapter
R20-R23
Symptoms and signs involving the skin and subcutaneous tissue

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR20-R23Symptoms and signs involving the skin and subcutaneous tissue
CategoryR23Other skin changes
This CodeR23Other skin changes

Specific Coding for Other skin changesOverview

Non-specific codes like R23 require more characters. Use one of these billable codes instead:

  • Use R23.0 for Cyanosis

  • Use R23.1 for Pallor

  • Use R23.2 for Flushing

  • Use R23.3 for Spontaneous ecchymoses

  • Use R23.4 for Changes in skin texture

  • Use R23.8 for Other skin changes

  • Use R23.9 for Unspecified skin changes

Patient EducationClinical

Skin Conditions

Your skin is your body's largest organ. It covers the entire outside of your body. There are many ways that your skin protects your body and helps keep you healthy. For example, it:

The full article covers:

  • What does your skin do?
  • What problems and conditions can affect your skin?
  • How can I keep my skin healthy?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About R23Overview

Is R23 (Other skin changes) a billable code?

No. This is a category header that groups the codes for other skin changes, and headers cannot be submitted on claims. Claims for other skin changes need a more specific code from this category, such as R23.0, R23.1, and R23.2.

Can R23 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the other skin changes is established, that condition takes the principal position instead.