I67.841

Billable code

Reversible cerebrovascular vasoconstriction syndrome

The ICD-10 code for reversible cerebrovascular vasoconstriction syndrome is I67.841.

Clinical notes

Code first

This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.

underlying condition, if applicable, such as eclampsia (O15.00-O15.9)

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

Call-Fleming syndrome

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Related codes in this category

I67.848Other cerebrovascular vasospasm and vasoconstriction
I67.841Reversible cerebrovascular vasoconstriction syndrome

ICD-9-CM equivalent

Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.

4359Approximate match

View full ICD-10 → ICD-9 crosswalk →

Associated MS-DRGs

I67.841 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.