R05.3

ICD-10Billable

Chronic cough

Official ICD-10-CM descriptor (FY2026)

Chronic cough

R05.3 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Persistent cough
Refractory cough
Unexplained cough

Related codes in R05

Where this code sits

Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: Symptoms and signs involving the circulatory and respiratory systems (R00-R09)
Parent code: R05

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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.