I97.821 — Postprocedural cerebrovascular infarction following other surgery
Is I97.821 billable?
Yes — I97.821 is billable for FY2027. I97.821 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. I97.821 may be submitted for encounters from October 1, 2026 through September 30, 2027.
I97.821 at a glance
| Code | I97.821 |
|---|---|
| Description | Postprocedural cerebrovascular infarction following other surgery |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does I97.821 group to?
I97.821 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.
- 091Other Disorders of Nervous System with MCCmedical
- 092Other Disorders of Nervous System with CCmedical
- 093Other Disorders of Nervous System without CC/MCCmedical
As a secondary diagnosis, I97.821 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is I97.821 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to I97.821. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Stroke › postprocedural › following other surgery (apoplectic) (brain) (ischemic) (paralytic)
- Infarct, infarction › cerebral › postprocedural › following other surgery
Use additional code — inherited from I97.8
Report an additional code alongside I97.821 to fully describe the condition. I97.821 is sequenced first.
- code, if applicable, to further specify disorder
Excludes2 — not included here — inherited from Chapter 9
The conditions below are not part of I97.821, but a patient may have both at the same time. When documentation supports it, I97.821 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 I97
The conditions below are not part of I97.821, but a patient may have both at the same time. When documentation supports it, I97.821 and the excluded code may both be reported.
- postprocedural shock (T81.1-)
How long has I97.821 existed?
I97.821 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
- FY2018Postprocedural cerebrovascular infarction during other surgeryPostprocedural cerebrovascular infarction following other surgery
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.