Z86.73 — Personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficits
Z86.73 is a billable, specific ICD-10-CM code for personal history of transient ischemic attack (tia), and cerebral infarction without residual deficits. 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.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Personal history of prolonged reversible ischemic neurological deficit (PRIND)
- Personal history of stroke NOS without residual deficits
Excludes2 inherited from the categories above Z86.73
Also inherited, and the opposite of Excludes1: these conditions are not part of Z86.73, but a patient can have both, so you may code both.
Other codes that can never be billed with Z86.73
These codes carry an Excludes1 note pointing at Z86.73. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Z86.73 alone.
Risk adjustment
Z86.73 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
Z86.73 is named in 34 Medicare coverage policies — 34 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56697Billing and Coding: Non-Invasive Vascular Studies
- A56758Billing and Coding: Non-Invasive Vascular Studies
- A56781Billing and Coding: Transthoracic Echocardiography (TTE)
- A56943Billing and Coding: MolDX: Biomarkers in Cardiovascular Risk Assessment
How Z86.73 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 Z86.73.
- Accident›cerebrovascular›chronic(old) (remote) (imaging) (without sequelae)
- Accident›cerebrovascular›old(without sequelae)
- History›personal›cerebral infarction without residual deficit
- History›personal›prolonged reversible ischemic neurologic deficit(PRIND)
- History›personal›stroke without residual deficits
- History›personal›transient ischemic attack without residual deficits(TIA)
- Infarct, infarction›cerebral›chronic(imaging) (old) (remote) (without sequelae)
- Stroke›cerebrovascular›chronic(old) (remote) (imaging) (without sequelae)
The condition this code belongs to
Every code for the condition on one page, which one applies when, and the mistake coders make with it.
Code history
Z86.73 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share Z86.7. If Z86.73 is not quite right, the correct code is usually one of these.
Questions about Z86.73
- Is Z86.73 a billable ICD-10-CM code?
- Yes. Z86.73 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Z86.73 sit in the tabular list?
- Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).
- What cannot be coded together with Z86.73?
- Z86.73 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter.