Polymyositis with respiratory involvement
Billable / specificHCC V28 93HCC V28 280
M33.21 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.
Inclusion terms
Includes (from M33)
- autoimmune disease NOS
- collagen (vascular) disease NOS
- systemic autoimmune disease
- systemic collagen (vascular) disease
- Note: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Excludes1
Not coded here — never report together with this code.
- autoimmune disease, single organ or single cell-type -code to relevant condition category (from M33)
Excludes2
Not included here — may be reported together when both conditions exist.
- arthropathic psoriasis (L40.5-) (from M33)
- certain conditions originating in the perinatal period (P04-P96) (from M33)
- certain infectious and parasitic diseases (A00-B99) (from M33)
- compartment syndrome (traumatic) (T79.A-) (from M33)
- complications of pregnancy, childbirth and the puerperium (O00-O9A) (from M33)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from M33)
- endocrine, nutritional and metabolic diseases (E00-E88) (from M33)
- injury, poisoning and certain other consequences of external causes (S00-T88) (from M33)
- neoplasms (C00-D49) (from M33)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from M33)
Also known as
- Polymyositis, with respiratory involvement
Parent code
- M33.2PolymyositisHeader