Z86.73 vs Z87.820
Z86.73 (Personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficits) compared with Z87.820 (Personal history of traumatic brain injury), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. Z86.73 carries an Excludes1 note covering Z87.820: “personal history of traumatic brain injury (Z87.820)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. Z87.820 carries an Excludes1 note covering Z86.73: “personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficits (Z86.73)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| Z86.73Personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficits | Z87.820Personal history of traumatic brain injury | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficits is a billable ICD-10-CM diagnosis code (Z86.73). | Personal history of traumatic brain injury is a billable ICD-10-CM diagnosis code (Z87.820). |
| Includes | Personal history of prolonged reversible ischemic neurological deficit (PRIND) Personal history of stroke NOS without residual deficits | — |
| Code first | any follow-up examination after treatment (Z09) | any follow-up examination after treatment (Z09) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources