ICD-10-CM R23.9 is the diagnosis code for Unspecified skin changes. This code falls under the section "Symptoms and signs involving the skin and subcutaneous tissue" within Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where R23.9 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, R23.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
R23.9 is the ICD-10-CM diagnosis code for "Unspecified skin changes". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of R23.9 is R23 ("Other skin changes"). R23.9 provides a more specific classification within this category.
R23.9 is located in Section R20-R23 — "Symptoms and signs involving the skin and subcutaneous tissue" within Chapter 18 of the ICD-10-CM Tabular List.
R23.9 has 1918 sub-code(s) that provide more specific detail: A00, A01, A02, A03, A04 and more.
Use R23.9 when the patients documented diagnosis matches "Unspecified skin changes" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Unspecified skin changes is R23.9.
Yes, R23.9 can be used as a primary diagnosis code since it is billable and specific.
R23.9 is in Chapter 18 of the ICD-10-CM Tabular List.
Yes, R23.9 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.