MCMedicalCodingSoftware
I67.83

I67.83: Posterior reversible encephalopathy syndrome

Billable / specific codeICD-10-CM

I67.83 is a billable, specific ICD-10-CM code for posterior reversible encephalopathy syndrome. It is valid for submission on a claim.

Check I67.83 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • PRES

Excludes1 inherited from the categories above I67.83

A category’s note binds every code beneath it.

Written on I67: Other cerebrovascular diseases

  • Occlusion and stenosis of cerebral artery causing cerebral infarction (I63.3-I63.5-)
  • Occlusion and stenosis of precerebral artery causing cerebral infarction (I63.2-)

Excludes2 inherited from the categories above I67.83

Not part of this code, but both may be coded when both are present.

Written on I67: Other cerebrovascular diseases

  • sequelae of the listed conditions (I69.8)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

I67.83 is named in 8 Medicare coverage policies: 8 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • 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

Alphabetic index entries that lead here

  • PRES(posterior reversible encephalopathy syndrome)
  • Syndrome›posterior›reversible encephalopathy(PRES)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under I67.8

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.