R05Cough

R05 is the ICD-10-CM diagnosis code for cough. It belongs to block R00-R09 (symptoms and signs involving the circulatory and respiratory systems) 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 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: R05.1 (cough), R05.2 (cough), R05.3 (cough), R05.4 (syncope), R05.8 (cough) and R05.9 (unspecified).

Don't report R05 together with the conditions in its Excludes1 note: paroxysmal cough due to Bordetella pertussis (A37.0-) and smoker's cough (J41.0).

The conditions in its Excludes2 note aren't part of R05, but may be coded alongside it if the patient has both: cough with hemorrhage (R04.2).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2022 (expanded into subcodes).

Before ICD-10, this condition was coded in ICD-9-CM as 786.2 (cough).