G90.522

Complex regional pain syndrome I of left lower limb

Billable / specific

G90.522 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Excludes1

Not coded here — never report together with this code.

  • causalgia of lower limb (G57.7-) (from G90.5)
  • causalgia of upper limb (G56.4-) (from G90.5)
  • complex regional pain syndrome II of lower limb (G57.7-) (from G90.5)
  • complex regional pain syndrome II of upper limb (G56.4-) (from G90.5)
  • dysfunction of the autonomic nervous system due to alcohol (G31.2) (from G90)

Excludes2

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

  • certain conditions originating in the perinatal period (P04-P96) (from G90)
  • certain infectious and parasitic diseases (A00-B99) (from G90)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from G90)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from G90)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from G90)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from G90)
  • neoplasms (C00-D49) (from G90)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from G90)

Parent code

  • G90.52Complex regional pain syndrome I of lower limbHeader

Related codes

  • G90.521Complex regional pain syndrome I of right lower limbBillable
  • G90.523Complex regional pain syndrome I of lower limb, bilateralBillable
  • G90.529Complex regional pain syndrome I of unspecified lower limbBillable

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