G92.9

Unspecified toxic encephalopathy

Billable / specific

G92.9 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Excludes2

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

  • certain conditions originating in the perinatal period (P04-P96) (from G92)
  • certain infectious and parasitic diseases (A00-B99) (from G92)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from G92)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from G92)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from G92)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from G92)
  • neoplasms (C00-D49) (from G92)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from G92)

Code first

Sequence the underlying condition first.

  • poisoning due to drug or toxin, if applicable, (T36-T65 with fifth or sixth character 1-4)

Use additional code

Add a code to identify the following, if applicable.

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Also known as

  • Encephalopathy, toxic
  • Myelitis, toxic

Parent code

  • G92Toxic encephalopathyHeader

Related codes

  • G92.0Immune effector cell-associated neurotoxicity syndromeHeader
  • G92.8Other toxic encephalopathyBillable

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