2019 ICD-10-CM Diagnosis Code I25.110

Atherosclerotic heart disease of native coronary artery with unstable angina pectoris

ICD-10-CM Coding Rules
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 I25.110. 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.
  • unstable angina without atherosclerotic heart disease (
    ICD-10-CM Diagnosis Code I20.0

    Unstable angina

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Accelerated angina
    • Crescendo angina
    • De novo effort angina
    • Intermediate coronary syndrome
    • Preinfarction syndrome
    • Worsening effort angina
    I20.0
    )
The following code(s) above I25.110 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 I25.110:
  • I00-I99
    2019 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
    2019 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 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
  • I25.1
    ICD-10-CM Diagnosis Code I25.1

    Atherosclerotic heart disease of native coronary artery

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Applicable To
    • Atherosclerotic cardiovascular disease
    • Coronary (artery) atheroma
    • Coronary (artery) atherosclerosis
    • Coronary (artery) disease
    • Coronary (artery) sclerosis
    Type 2 Excludes
    • atheroembolism (I75.-)
    • atherosclerosis of coronary artery bypass graft(s) and transplanted heart (I25.7-)
    Use Additional
    • code, if applicable, to identify:
    • coronary atherosclerosis due to calcified coronary lesion (I25.84)
    • coronary atherosclerosis due to lipid rich plaque (I25.83)
    Atherosclerotic heart disease of native coronary artery
Approximate Synonyms ICD-10-CM I25.110 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):

Convert I25.110 to ICD-9-CM

Code History

Diagnosis Index entries containing back-references to I25.110:

ICD-10-CM Codes Adjacent To I25.110
I23.8 Other current complications following acute myocardial infarction
I24 Other acute ischemic heart diseases
I24.0 Acute coronary thrombosis not resulting in myocardial infarction
I24.1 Dressler's syndrome
I24.8 Other forms of acute ischemic heart disease
I24.9 Acute ischemic heart disease, unspecified
I25 Chronic ischemic heart disease
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

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