M04

Autoinflammatory syndromes

Non-billable header

M04 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Includes

  • Note: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Excludes2

Not included here — may be reported together when both conditions exist.

  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • Crohn's disease (K50.-)

More specific codes M04

  • M04.1Periodic fever syndromesBillable
  • M04.2Cryopyrin-associated periodic syndromesBillable
  • M04.3VEXAS syndromeBillable
  • M04.8Other autoinflammatory syndromesBillable
  • M04.9Autoinflammatory syndrome, unspecifiedBillable

Browse