G92.8 — Other toxic encephalopathy
G92.8 is a billable, specific ICD-10-CM code for other toxic encephalopathy. It is valid for submission on a claim.
Code first
The underlying condition must be sequenced before this code.
Use additional code
Add a secondary code to capture the detail described below.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Toxic encephalitis
- Toxic metabolic encephalopathy
Risk adjustment
G92.8 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
G92.8 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56551Billing and Coding: Visual Fields Testing
- A56612Billing and Coding: CT of the Head
- A56799Billing and Coding: Visual Fields Testing
- A57204Billing and Coding: MRI and CT Scans of the Head and Neck
How G92.8 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to G92.8.
- Bromidism, bromism
- Encephalitis›toxic NEC
- Jamaican›neuropathy
- Jamaican›paraplegic tropical ataxic-spastic syndrome
- Leukoencephalopathy›heroin vapor
- Meningoencephalitis›toxic NEC
- Encephalopathy›due to›drugs
- Encephalopathy›metabolic›drug induced
- Encephalopathy›metabolic›toxic
- Encephalopathy›toxic›metabolic
Related codes at this level
Codes that share G92. If G92.8 is not quite right, the correct code is usually one of these.
Questions about G92.8
- Is G92.8 a billable ICD-10-CM code?
- Yes. G92.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does G92.8 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Other disorders of the nervous system (G89-G99).