M33.1

Other dermatomyositis

Non-billable header

M33.1 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Applicable to

  • Adult dermatomyositis

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

  • Adult dermatomyositis

Parent code

  • M33DermatopolymyositisHeader

More specific codes M33.1

  • M33.10Other dermatomyositis, organ involvement unspecifiedBillable
  • M33.11Other dermatomyositis with respiratory involvementBillable
  • M33.12Other dermatomyositis with myopathyBillable
  • M33.13Other dermatomyositis without myopathyBillable
  • M33.19Other dermatomyositis with other organ involvementBillable

Related codes

  • M33.0Juvenile dermatomyositisHeader
  • M33.2PolymyositisHeader
  • M33.9Dermatopolymyositis, unspecifiedHeader

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