M22

Disorder of patella

Non-billable header

M22 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)
  • joints of the spine (M40-M54)
  • traumatic dislocation of patella (S83.0-)

More specific codes M22

  • M22.0Recurrent dislocation of patellaHeader
  • M22.1Recurrent subluxation of patellaHeader
  • M22.2Patellofemoral disordersHeader
  • M22.3Other derangements of patellaHeader
  • M22.4Chondromalacia patellaeHeader
  • M22.8Other disorders of patellaHeader
  • M22.9Unspecified disorder of patellaHeader

Related codes

  • M20Acquired deformities of fingers and toesHeader
  • M21Other acquired deformities of limbsHeader
  • M23Internal derangement of kneeHeader
  • M24Other specific joint derangementsHeader
  • M25Other joint disorder, not elsewhere classifiedHeader

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