AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2023 Issue 4; New/Revised ICD-10-CM Codes

Nontraumatic Coma due to Underlying Condition

Code R40.2A, Nontraumatic coma due to underlying condition, has been created to capture coma due to nontraumatic cause, such as brain hemorrhage or medication. Code R40.2A includes secondary coma and has an instructional note to code first the underlying condition. ...

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