Is M33.9 a billable code?
No. M33.9 is a header code that groups 5 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
M33.9: Dermatopolymyositis, unspecified
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
M33.9 groups related diagnoses under dermatopolymyositis, unspecified. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under M33.9
- M33.90Dermatopolymyositis, unspecified, organ involvement unspecified
- M33.91Dermatopolymyositis, unspecified with respiratory involvement
- M33.92Dermatopolymyositis, unspecified with myopathy
- M33.93Dermatopolymyositis, unspecified without myopathy
- M33.99Dermatopolymyositis, unspecified with other organ involvement
Other codes in M33 Dermatopolymyositis
M33.9 questions
What does M33.9 mean?
M33.9 is the ICD-10-CM code for Dermatopolymyositis, unspecified. It is in chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.