I25.721 — Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris with documented spasm
Is I25.721 billable?
Yes — I25.721 is billable for FY2027. I25.721 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. I25.721 may be submitted for encounters from October 1, 2026 through September 30, 2027.
I25.721 at a glance
| Code | I25.721 |
|---|---|
| Description | Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris with documented spasm |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does I25.721 group to?
I25.721 sits in MDC 05 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 302Atherosclerosis with MCCmedical
- 303Atherosclerosis without MCCmedical
As a secondary diagnosis, I25.721 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is I25.721 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to I25.721. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Arteriosclerosis, arteriosclerotic › coronary › bypass graft › autologous artery › with › angina pectoris › with documented spasm (diffuse) (obliterans) (of) (senile) (with calcification)
Excludes1 — never code together
The conditions below can never be reported together with I25.721 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- angina pectoris with documented spasm without atherosclerosis of autologous artery coronary artery bypass graft(s) (I20.1)
Excludes1 — never code together — inherited from I25.7
The conditions below can never be reported together with I25.721 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 I25
Report an additional code alongside I25.721 to fully describe the condition. I25.721 is sequenced first.
Use additional code — inherited from I25.7
Report an additional code alongside I25.721 to fully describe the condition. I25.721 is sequenced first.
Excludes2 — not included here — inherited from Chapter 9
The conditions below are not part of I25.721, but a patient may have both at the same time. When documentation supports it, I25.721 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 I25
The conditions below are not part of I25.721, but a patient may have both at the same time. When documentation supports it, I25.721 and the excluded code may both be reported.
- non-ischemic myocardial injury (I5A)
Code also — inherited from I20-I25
Two codes may be needed to describe the condition fully. Whether I25.721 is sequenced first depends on the reason for the encounter.
- the presence of hypertension (I10-I1A)
How long has I25.721 existed?
I25.721 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.
What other codes are in the I25.72 family? (4)
- I25.720Atherosclerosis of autologous artery coronary artery bypass graft(s) with unstable angina pectoris
- I25.722Atherosclerosis of autologous artery coronary artery bypass graft(s) with refractory angina pectoris
- I25.728Atherosclerosis of autologous artery coronary artery bypass graft(s) with other forms of angina pectoris
- I25.729Atherosclerosis of autologous artery coronary artery bypass graft(s) with unspecified angina pectoris