Chapter 10: Diseases of the Respiratory System (J00-J99)

• Coding asthma with ICD -9 codes has been based on extrinsic or intrinsic asthma but with ICD-10 it is not necessary for the coder to look for extrinsic or intrinsic because in ICD -10-CM, it is classified as mild intermittent, mild persistent, moderate persistent, and severe persistent. ................
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