I67.83 — Posterior reversible encephalopathy syndrome
I67.83 is a billable, specific ICD-10-CM code for posterior reversible encephalopathy syndrome. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- PRES
Risk adjustment
I67.83 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
I67.83 is named in 8 Medicare coverage policies — 8 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
- A56619Billing and Coding: Nerve Conduction Studies and Electromyography
- A56767Billing and Coding: Heavy Metal Testing
How I67.83 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 I67.83.
- PRES(posterior reversible encephalopathy syndrome)
- Syndrome›posterior›reversible encephalopathy(PRES)
Related codes at this level
Codes that share I67.8. If I67.83 is not quite right, the correct code is usually one of these.
Questions about I67.83
- Is I67.83 a billable ICD-10-CM code?
- Yes. I67.83 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I67.83 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Cerebrovascular diseases (I60-I69).