I60-I69 — Cerebrovascular diseases
ICD-10-CM codes I60-I69 cover cerebrovascular diseases, within diseases of the circulatory system. The block holds 505 codes across 9 categories, of which 410 are billable and 95 are header codes that cannot be submitted on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- traumatic intracranial hemorrhage (S06.-)
Use additional code
Add a secondary code to capture the detail described below.
Risk adjustment in I60-I69
0 codes in this block map to a CMS-HCC, which means the diagnosis carries a risk-adjustment payment when it is documented and coded. Under-coding here is money left on the table; over-coding here is what audits are for.
- HCC 254 Monoplegia, Other Paralytic Syndromes
- HCC 249 Ischemic or Unspecified Stroke
- HCC 248 Intracranial Hemorrhage
- HCC 253 Hemiplegia/Hemiparesis
- HCC 127 Dementia, Mild or Unspecified
What else to watch in I60-I69
- 150 codes are laterality-specific. They come in left and right pairs, and the pair is mutually exclusive on a single site: coding both without a bilateral code is a contradiction a scrubber should catch before the payer does.
- 389 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.
Categories in I60-I69
- I60Nontraumatic subarachnoid hemorrhage
- I61Nontraumatic intracerebral hemorrhage
- I62Other and unspecified nontraumatic intracranial hemorrhage
- I63Cerebral infarction
- I65Occlusion and stenosis of precerebral arteries, not resulting in cerebral infarction
- I66Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction
- I67Other cerebrovascular diseases
- I68Cerebrovascular disorders in diseases classified elsewhere
- I69Sequelae of cerebrovascular disease