Alphabetic Index FY2027

G92.0

Immune effector cell-associated neurotoxicity syndrome

FY2027Chapter 6: Diseases of the nervous system/G89–G99 Other disorders of the nervous system

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

G92.0 is a non-billable ICD-10-CM code header for immune effector cell-associated neurotoxicity syndrome. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are G92.00 Immune effector cell-associated neurotoxicity syndrome, grade unspecified; G92.01 Immune effector cell-associated neurotoxicity syndrome, grade 1; G92.02 Immune effector cell-associated neurotoxicity syndrome, grade 2; G92.03 Immune effector cell-associated neurotoxicity syndrome, grade 3 and 2 more. Its coding notes include a Code first instruction, a Code also instruction and 8 Excludes2 entries.

Code first

If the underlying condition listed here is present and known, sequence it first.

This code
  • underlying cause such as:
    • complications of immune effector cellular therapy (T80.82)

Code also

Two codes may be needed to describe the condition. This note gives no sequencing order.

This code
  • , if applicable, associated signs and symptoms, such as:
    • cerebral edema (G93.6)
    • unspecified convulsions (R56.9)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (8 notes)
Inherited from Chapter 6 Diseases of the nervous system
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • 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)

More specific codes under G92.0 6