R56.1 — Post traumatic seizures
R56.1 is a billable, specific ICD-10-CM code for post traumatic seizures. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- post traumatic epilepsy (G40.-)
Other codes that can never be billed with R56.1
These codes carry an Excludes1 note pointing at R56.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading R56.1 alone.
Risk adjustment
R56.1 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 201 Seizure Disorders and Convulsions0.245 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
R56.1 is named in 12 Medicare coverage policies — 12 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56612Billing and Coding: CT of the Head
- A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing
- A56756Billing and Coding: Home Health - Psychiatric Care
- A56771Billing and Coding: Special Electroencephalography
How R56.1 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 R56.1.
- Convulsions›post traumatic
- Seizure›post traumatic
Related codes at this level
Codes that share R56. If R56.1 is not quite right, the correct code is usually one of these.
Questions about R56.1
- Is R56.1 a billable ICD-10-CM code?
- Yes. R56.1 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R56.1 sit in the tabular list?
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block General symptoms and signs (R50-R69).
- What cannot be coded together with R56.1?
- R56.1 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.