I67.850 — Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy
Is I67.850 billable?
Yes — I67.850 is billable for FY2027. I67.850 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. I67.850 may be submitted for encounters from October 1, 2026 through September 30, 2027.
I67.850 at a glance
| Code | I67.850 |
|---|---|
| Description | Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does I67.850 group to?
I67.850 sits in MDC 01 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 070Other Cerebrovascular Disorders with MCCmedical
- 071Other Cerebrovascular Disorders with CCmedical
- 072Other Cerebrovascular Disorders without CC/MCCmedical
As a secondary diagnosis, I67.850 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is I67.850 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to I67.850. They show the wording a clinician may have documented, which often differs from the Tabular description.
- CADASIL (cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy)
- Arteriopathy › cerebral autosomal dominant, with subcortical infarcts and leukoencephalopathy
Code also
Two codes may be needed to describe the condition fully. Whether I67.850 is sequenced first depends on the reason for the encounter.
Inclusion terms
Alternative wording in documentation that is classified to I67.850.
- CADASIL
Excludes1 — never code together — inherited from I60-I69
The conditions below can never be reported together with I67.850 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- traumatic intracranial hemorrhage (S06.-)
Excludes1 — never code together — inherited from I67
The conditions below can never be reported together with I67.850 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from I60-I69
Report an additional code alongside I67.850 to fully describe the condition. I67.850 is sequenced first.
Excludes2 — not included here — inherited from Chapter 9
The conditions below are not part of I67.850, but a patient may have both at the same time. When documentation supports it, I67.850 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Excludes2 — not included here — inherited from I67
The conditions below are not part of I67.850, but a patient may have both at the same time. When documentation supports it, I67.850 and the excluded code may both be reported.
- sequelae of the listed conditions (I69.8)
How long has I67.850 existed?
I67.850 first appears in FY2019.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.