Z87.820 — Personal history of traumatic brain injury
Z87.820 is a billable, specific ICD-10-CM code for personal history of traumatic brain injury. 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.
- personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficits (Z86.73)
Other codes that can never be billed with Z87.820
These codes carry an Excludes1 note pointing at Z87.820. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Z87.820 alone.
- Z86.73Personal history of transient ischemic attack (TIA), and cerebral infarction without residual deficits
Risk adjustment
Z87.820 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
Z87.820 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57204Billing and Coding: MRI and CT Scans of the Head and Neck
How Z87.820 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 Z87.820.
- History›personal›brain injury(traumatic)
- History›personal›traumatic brain injury
Related codes at this level
Codes that share Z87.82. If Z87.820 is not quite right, the correct code is usually one of these.
Questions about Z87.820
- Is Z87.820 a billable ICD-10-CM code?
- Yes. Z87.820 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does Z87.820 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 Z87.820?
- Z87.820 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.