Excludes1 pair
I60.7 vs I67.1
I60.7 and I67.1 are not coded together. ICD-10-CM declares them mutually exclusive with an Excludes1 note — the two conditions are not expected to occur together, so exactly one of them is normally correct for a given encounter. The Official Guidelines carve out one exception: if the two conditions are clearly unrelated to each other, both may be reported.
The official note, declared on I60.7
berry aneurysm, nonruptured (I67.1)
I60.7
Nontraumatic subarachnoid hemorrhage from unspecified intracranial artery
BillableUnspecified
- Chapter 9
- Diseases of the circulatory system
- Section
- I60-I69
Use when the record says
- Ruptured (congenital) berry aneurysm
- Ruptured (congenital) cerebral aneurysm
- Subarachnoid hemorrhage (nontraumatic) from cerebral artery NOS
- Subarachnoid hemorrhage (nontraumatic) from communicating artery NOS
Indexed under
- Aneurysm › berry › ruptured
- Aneurysm › brain › berry › ruptured
- Aneurysm › brain › congenital › ruptured
- Aneurysm › brain › miliary › ruptured
- Aneurysm › congenital › brain › ruptured
I67.1
Cerebral aneurysm, nonruptured
Billable
- Chapter 9
- Diseases of the circulatory system
- Section
- I60-I69
Use when the record says
- Cerebral aneurysm NOS
- Cerebral arteriovenous fistula, acquired
- Internal carotid artery aneurysm, intracranial portion
- Internal carotid artery aneurysm, NOS
Indexed under
- Aneurysm › berry (congenital) (nonruptured)
- Aneurysm › brain
- Aneurysm › cavernous sinus
- Aneurysm › circle of Willis
- Aneurysm › miliary (congenital)
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027