I97.121 — Postprocedural cardiac arrest following other surgery
Is I97.121 billable?
Yes — I97.121 is billable for FY2027. I97.121 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. I97.121 may be submitted for encounters from October 1, 2026 through September 30, 2027.
I97.121 at a glance
| Code | I97.121 |
|---|---|
| Description | Postprocedural cardiac arrest following other surgery |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does I97.121 group to?
I97.121 sits in MDC 05 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.
- 314Other Circulatory System Diagnoses with MCCmedical
- 315Other Circulatory System Diagnoses with CCmedical
- 316Other Circulatory System Diagnoses without CC/MCCmedical
As a secondary diagnosis, I97.121 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is I97.121 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to I97.121. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Complication › postprocedural › cardiac arrest › following other surgery (s) (from) (of)
Excludes2 — not included here — inherited from Chapter 9
The conditions below are not part of I97.121, but a patient may have both at the same time. When documentation supports it, I97.121 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 I97.121, but a patient may have both at the same time. When documentation supports it, I97.121 and the excluded code may both be reported.
- postprocedural shock (T81.1-)
Excludes2 — not included here — inherited from I97.1
The conditions below are not part of I97.121, but a patient may have both at the same time. When documentation supports it, I97.121 and the excluded code may both be reported.
How long has I97.121 existed?
I97.121 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.