FY2027 ICD-10-CM reference
I25.792: Atherosclerosis of other coronary artery bypass graft(s) with refractory angina pectoris
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Atherosclerosis of other coronary artery bypass graft(s) with refractory angina pectoris. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Billable code. Verified against the official FY2027 order file.
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Excludes2
certain conditions originating in the perinatal period (P04-P96)
Source: I00-I99 (chapter, inherited).
Excludes2
certain infectious and parasitic diseases (A00-B99)
Source: I00-I99 (chapter, inherited).
Excludes2
complications of pregnancy, childbirth and the puerperium (O00-O9A)
Source: I00-I99 (chapter, inherited).
Excludes2
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
Source: I00-I99 (chapter, inherited).
Excludes2
endocrine, nutritional and metabolic diseases (E00-E88)
Source: I00-I99 (chapter, inherited).
Excludes2
injury, poisoning and certain other consequences of external causes (S00-T88)
Source: I00-I99 (chapter, inherited).
Excludes2
neoplasms (C00-D49)
Source: I00-I99 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: I00-I99 (chapter, inherited).
Excludes2
systemic connective tissue disorders (M30-M36)
Source: I00-I99 (chapter, inherited).
Excludes2
transient cerebral ischemic attacks and related syndromes (G45.-)
Source: I00-I99 (chapter, inherited).
Code also
the presence of hypertension (I10-I1A)
Source: I20-I25 (section, inherited).
Instructional note
code to identify:
Source: I25 (category, inherited).
Instructional note
chronic total occlusion of coronary artery (I25.82)
Source: I25 (category, inherited).
Instructional note
exposure to environmental tobacco smoke (Z77.22)
Source: I25 (category, inherited).
Instructional note
history of tobacco dependence (Z87.891)
Source: I25 (category, inherited).
Instructional note
occupational exposure to environmental tobacco smoke (Z57.31)
Source: I25 (category, inherited).
Instructional note
tobacco dependence (F17.-)
Source: I25 (category, inherited).
Instructional note
tobacco use (Z72.0)
Source: I25 (category, inherited).
Excludes2
non-ischemic myocardial injury (I5A)
Source: I25 (category, inherited).
Instructional note
code, if applicable, to identify:
Source: I25.7 (self, inherited).
Instructional note
coronary atherosclerosis due to calcified coronary lesion (I25.84)
Source: I25.7 (self, inherited).
Instructional note
coronary atherosclerosis due to lipid rich plaque (I25.83)
Source: I25.7 (self, inherited).
Excludes1
atherosclerosis of bypass graft(s) of transplanted heart without angina pectoris (I25.812)
Source: I25.7 (self, inherited).
Excludes1
atherosclerosis of coronary artery bypass graft(s) without angina pectoris (I25.810)
Source: I25.7 (self, inherited).
Excludes1
atherosclerosis of native coronary artery of transplanted heart without angina pectoris (I25.811)
Source: I25.7 (self, inherited).
Compare the FY2027 additions, removals and billable-status changes
What does I25.792 mean in FY2027?
The official ICD-10-CM descriptor is Atherosclerosis of other coronary artery bypass graft(s) with refractory angina pectoris. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is I25.792 billable in FY2027?
The FY2027 order file marks I25.792 as billable. Check the complete Tabular instructions and documentation before assigning it.
Does I25.792 map to an HCC?
I25.792 has no CMS-HCC V28 category in the CMS 2027 Initial ICD-10-CM Mappings (payment year 2027, 2026 dates of service). Under the PY2026 CMS mapping; CMS 2027 initial file unchanged: ESRD HCC 88 (This code has a CMS age requirement: applies when age >= 15); RxHCC HCC 188 (This code has a CMS age requirement: applies when age >= 15). Coefficients for these models are pending verification for payment year 2027. CMS-HCC V24: not used for payment year 2027 Medicare Advantage payment (CMS CY 2027 Rate Announcement). PACE and HHS-HCC mappings are still pending verification for FY2027.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.
Review the FY2026 April edition