2020 ICD-10-CM Diagnosis Code I25.41

Coronary artery aneurysm

    2016 2017 2018 2019 2020 Billable/Specific Code
  • I25.41 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM I25.41 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of I25.41 - other international versions of ICD-10 I25.41 may differ.
Applicable To
  • Coronary arteriovenous fistula, acquired
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as I25.41. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • congenital coronary (artery) aneurysm (
    ICD-10-CM Diagnosis Code Q24.5

    Malformation of coronary vessels

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital coronary (artery) aneurysm
    Q24.5
    )
The following code(s) above I25.41 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to I25.41:
  • I00-I99
    2020 ICD-10-CM Range I00-I99

    Diseases of the circulatory system

    Type 2 Excludes
    • 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.-)
    Diseases of the circulatory system
  • I20-I25
    2020 ICD-10-CM Range I20-I25

    Ischemic heart diseases

    Use Additional
    • code to identify presence of hypertension (I10-I16)
    Ischemic heart diseases
  • I25
    ICD-10-CM Diagnosis Code I25

    Chronic ischemic heart disease

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Use Additional
    • 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)
    Chronic ischemic heart disease
Approximate Synonyms
  • Acquired arteriovenous fistula of heart
  • Acquired coronary arteriovenous fistula
  • Aneurysm of coronary artery due to acute febrile mucocutaneous lymph node syndrome
  • Aneurysm of coronary vessels
  • Aneurysm, coronary vessel
  • Coronary aneurysm in kawasaki disease
  • Dissecting aneurysm of coronary artery
  • Dissecting coronary artery aneurysm
Clinical Information
  • Abnormal balloon- or sac-like dilatation in the wall of coronary vessels. Most coronary aneurysms are due to coronary atherosclerosis, and the rest are due to inflammatory diseases, such as kawasaki disease.
ICD-10-CM I25.41 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 314 Other circulatory system diagnoses with mcc
  • 315 Other circulatory system diagnoses with cc
  • 316 Other circulatory system diagnoses without cc/mcc

Convert I25.41 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to I25.41:
  • Aneurysm (anastomotic) (artery) (cirsoid) (diffuse) (false) (fusiform) (multiple) (saccular) I72.9
    ICD-10-CM Diagnosis Code I72.9

    Aneurysm of unspecified site

      2016 2017 2018 2019 2020 Billable/Specific Code
    • arteriovenous (congenital) - see also Malformation, arteriovenous
      • acquired I77.0
        ICD-10-CM Diagnosis Code I77.0

        Arteriovenous fistula, acquired

          2016 2017 2018 2019 2020 Billable/Specific Code
        Applicable To
        • Aneurysmal varix
        • Arteriovenous aneurysm, acquired
        Type 1 Excludes
        • arteriovenous aneurysm NOS (Q27.3-)
        • presence of arteriovenous shunt (fistula) for dialysis (Z99.2)
        • traumatic - see injury of blood vessel by body region
        Type 2 Excludes
        • coronary I25.41
    • coronary (arteriosclerotic) (artery) I25.41
  • Fistula (cutaneous) L98.8
    ICD-10-CM Diagnosis Code L98.8

    Other specified disorders of the skin and subcutaneous tissue

      2016 2017 2018 2019 2020 Billable/Specific Code
    • arteriovenous (acquired) (nonruptured) I77.0
      ICD-10-CM Diagnosis Code I77.0

      Arteriovenous fistula, acquired

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Aneurysmal varix
      • Arteriovenous aneurysm, acquired
      Type 1 Excludes
      • arteriovenous aneurysm NOS (Q27.3-)
      • presence of arteriovenous shunt (fistula) for dialysis (Z99.2)
      • traumatic - see injury of blood vessel by body region
      Type 2 Excludes
    • coronary, arteriovenous I25.41

ICD-10-CM Codes Adjacent To I25.41
I25.1 Atherosclerotic heart disease of native coronary artery
I25.10 …… without angina pectoris
I25.11 Atherosclerotic heart disease of native coronary artery with angina pectoris
I25.110 Atherosclerotic heart disease of native coronary artery with unstable angina pectoris
I25.111 …… with documented spasm
I25.118 Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
I25.119 Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris
I25.2 Old myocardial infarction
I25.3 Aneurysm of heart
I25.4 Coronary artery aneurysm and dissection
I25.41 Coronary artery aneurysm
I25.42 Coronary artery dissection
I25.5 Ischemic cardiomyopathy
I25.6 Silent myocardial ischemia
I25.7 Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris
I25.70 Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris
I25.700 Atherosclerosis of coronary artery bypass graft(s), unspecified, with unstable angina pectoris
I25.701 …… with documented spasm
I25.708 Atherosclerosis of coronary artery bypass graft(s), unspecified, with other forms of angina pectoris
I25.709 Atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified angina pectoris
I25.71 Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.