ICD-10-CM 2027 diagnosis code
G92.0Immune effector cell-associated neurotoxicity syndrome
G92.0 is a header code, so it can't be reported by itself. Choose one of the 6 more specific codes beneath it.
Code last changed in FY2022 (effective October 1, 2021). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About G92.0
G92.0 is the ICD-10-CM diagnosis code for immune effector cell-associated neurotoxicity syndrome. It belongs to category G92 (toxic encephalopathy), block G89-G99 (other disorders of the nervous system) and chapter 6 (diseases of the nervous system). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.
Within G92 (toxic encephalopathy), G92.0 is specifically for immune effector cell-associated neurotoxicity syndrome. Related codes cover other toxic encephalopathy (G92.8) and unspecified toxic encephalopathy (G92.9).
To report this condition, pick the subcode that matches the documentation: G92.00 (grade unspecified), G92.01 (grade 1), G92.02 (grade 2), G92.03 (grade 3), G92.04 (grade 4) and G92.05 (grade 5).
Code first underlying cause such as: complications of immune effector cellular therapy (T80.82).
It was added in FY2022, effective October 1, 2021.
Specific codes under G92.0
- G92.00Immune effector cell-associated neurotoxicity syndrome, grade unspecifiedBillable
- G92.01Immune effector cell-associated neurotoxicity syndrome, grade 1Billable
- G92.02Immune effector cell-associated neurotoxicity syndrome, grade 2Billable
- G92.03Immune effector cell-associated neurotoxicity syndrome, grade 3Billable
- G92.04Immune effector cell-associated neurotoxicity syndrome, grade 4Billable
- G92.05Immune effector cell-associated neurotoxicity syndrome, grade 5Billable
Coding notes
- underlying cause such as:
- complications of immune effector cellular therapy (T80.82)
Notes that apply from higher levels
Instructions written at a parent level also apply to G92.0.
Broader instructions also apply from Chapter 6: Diseases of the nervous system.
Codes whose notes reference G92.0
- T80.82Use additional code
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2022 (effective 10/1/2021): Added
- No changes since FY2022.
Common questions about G92.0
Is G92.0 billable?
- No. G92.0 is a header code. Report one of its more specific subcodes instead.