Alphabetic Index FY2027

I25.73

Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris

FY2027Chapter 9: Diseases of the circulatory system/I20–I25 Ischemic heart diseases

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

I25.73 is a non-billable ICD-10-CM code header for atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are I25.730 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unstable angina pectoris, I25.731 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris with documented spasm, I25.732 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with refractory angina pectoris, I25.738 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with other forms of angina pectoris and 1 more. Its coding notes include a Use additional code instruction, a Code also instruction, 3 Excludes1 entries and 11 Excludes2 entries.

Guidelines tip

From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.

These combination codes already include angina pectoris, so no separate angina code is added. The link is assumed unless the documentation says the angina is due to something else.

Guidelines I.C.9.bAtherosclerotic heart disease with angina pectorisRead the official text

Use additional code

Add the listed code as a secondary code, if known.

Inherited from I25.7 Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris
  • code, if applicable, to identify:
    • coronary atherosclerosis due to calcified coronary lesion (I25.84)
    • coronary atherosclerosis due to lipid rich plaque (I25.83)
Inherited from I25 Chronic ischemic heart disease
  • code to identify:
    • chronic total occlusion of coronary artery (I25.82)
    • exposure to environmental tobacco smoke (Z77.22)
    • history of tobacco dependence (Z87.891)
    • occupational exposure to environmental tobacco smoke (Z57.31)
    • tobacco dependence (F17.-)
    • tobacco use (Z72.0)

Code also

Two codes may be needed to describe the condition. This note gives no sequencing order.

Also from chapter/block level (1 note)
Inherited from I20–I25 Ischemic heart diseases
  • the presence of hypertension (I10-I1A)

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Inherited from I25.7 Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris
  • atherosclerosis of bypass graft(s) of transplanted heart without angina pectoris (I25.812)
  • atherosclerosis of coronary artery bypass graft(s) without angina pectoris (I25.810)
  • atherosclerosis of native coronary artery of transplanted heart without angina pectoris (I25.811)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from I25 Chronic ischemic heart disease
  • non-ischemic myocardial injury (I5A)
Also from chapter/block level (10 notes)
Inherited from Chapter 9 Diseases of the circulatory system
  • 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.-)

More specific codes under I25.73 5