AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2025 Issue 3; Ask the Editor

Complex Sleep Apnea (ComSA)

A patient with obstructive sleep apnea (OSA) underwent a polysomnography to assess the response to positive airway pressure (PAP) therapy and find the optimal PAP therapy modality and pressure. However, at pressures required to address the patient’s obstructive events, the patient subsequently developed clinically significant central apneas/hypopneas, with a final impression of complex sleep apnea (ComSA). How is a diagnosis of ComSA coded in a patient with OSA? ...

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