R05.3 Chronic cough

Billable ICD-10-CM code, FY2026.

Applicable to

• Persistent cough
• Refractory cough
• Unexplained cough

Applies from R05 Cough

Excludes1 (never code together)

• paroxysmal cough due to Bordetella pertussis (A37.0-)
• smoker's cough (J41.0)

Excludes2 (not included here)

• cough with hemorrhage (R04.2)

MS-DRG index

Defines the logic of DRG(s) 204 in MDC 04.

Diagnosis Index entries for R05.3

• Cough (affected) (epidemic) (nervous) › chronic
• Cough (affected) (epidemic) (nervous) › persistent
• Cough (affected) (epidemic) (nervous) › refractory
• Cough (affected) (epidemic) (nervous) › unexplained

Nearby codes

• R05 Cough
• R05.1 Acute cough
• R05.2 Subacute cough
• R05.3 Chronic cough (this code)
• R05.4 Cough syncope
• R05.8 Other specified cough
• R05.9 Cough, unspecified