R09Other symptoms and signs involving the circulatory and respiratory system

R09 is the ICD-10-CM diagnosis code for other symptoms and signs involving the circulatory and respiratory system. 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: R09.0 (hypoxemia), R09.1 (pleurisy), R09.2 (arrest), R09.3 (sputum), R09.8 (systems) and R09.A (system).

Don't report R09 together with the conditions in its Excludes1 note: acute respiratory distress syndrome (J80), respiratory arrest of newborn (P28.81), respiratory distress syndrome of newborn (P22.0), respiratory failure (J96.-) and 1 more.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.