M1A.22Non-billable (header)
Drug-induced chronic gout, elbow
Sub-codes of M1A.22(3)
M1A.22 is a non-billable header. Select a sub-code to bill. Sub-codes marked ⚠ require a 7th character — append A, D, or S (and an X placeholder if needed).
Code Hierarchy
┌13Diseases of the musculoskeletal system and connective tissue (M00-M99)├M05-M14Inflammatory polyarthropathies (M05-M14)├M1AChronic gout
└M1A.22Drug-induced chronic gout, elbow
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