The primary ICD-10-CM code for history of stroke is Z86.73 (Personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficits), a billable code reported when prior stroke or TIA has left no residual deficits.
Primary codes
Billable
Billable
Extension
—
7th character
—
POA exempt
Yes
Inclusion terms
- Personal history of prolonged reversible ischemic neurological deficit (PRIND)
- Personal history of stroke NOS without residual deficits
Coding risks
- Pairing with a mutually-exclusive code (Excludes-1 violation)
Hierarchy
Code ranges
Personal history of certain other diseases
Captures resolved personal history of conditions such as neoplasms, infections, mental disorders, and circulatory diseases with no current active illness.
Persons with potential health hazards related to family and personal history and certain conditions influencing health status
Broad Z-code block covering personal and family history, status codes, and other factors influencing current care but not representing active disease.
Cerebrovascular diseases
Active cerebrovascular conditions including hemorrhage, infarction, occlusion, stenosis, and late effects with residual neurologic deficits.
Transient cerebral ischemic attacks and related syndromes
Active or current transient ischemic attacks and related transient neurologic syndromes without infarction.
Personal history of diseases of the circulatory system
Personal history subcategory for resolved circulatory conditions including venous thrombosis, embolism, TIA, and other circulatory diseases.
Coding risks
Avoid these common coding issues when reporting History of Stroke.
Impact
Assigning Z86.73 without explicit deficit status may miscode as sequelae of cerebrovascular disease (I69).
Mitigation
Consider querying the provider when deficit status is absent rather than inferring from time since stroke or functional status.
Related codes
Ancillary and co-coding
Codes commonly reported with the primary diagnosis on the same claim.
Z-code variants
Family history, personal history, or screening encounter codes related to this condition.
In pregnancy
Pregnancy-specific O-code adaptations used in place of the primary when the condition occurs during or complicates pregnancy.
Differential codes
Alternative or commonly confused codes to consider when documentation suggests a different condition than the primary diagnosis.
Frequently asked questions
No. If any residual deficits are documented, use I69.3- codes instead. Z86.73 applies only when no residuals remain.
References
Compiled from the following authoritative coding references. Last updated 2026-08-04.