Specific code 2014 ICD-9-CM Diagnosis Code 414.9
Chronic ischemic heart disease, unspecified
  • Billable Code
  • Short description: Chr ischemic hrt dis NOS.
  • ICD-9-CM 414.9 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 414.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Chronic ischemic heart disease
Clinical Information
  • A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries, to obstruction by a thrombus, or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (myocardial infarction).
  • Blood deficiency in the myocardium caused by a constriction or obstruction of its blood vessels; frequently occurs in conjunction with hypoxia, which is reduction in oxygen supply.
Applies To
  • Ischemic heart disease NOS
Convert to ICD-10-CM: 414.9 converts approximately to:
  • 2014 ICD-10-CM I25.9 Chronic ischemic heart disease, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 414.9:
  • Change(s) (of) - see also Removal of
    • coronary (see also Ischemia, heart) 414.9
  • Damage
    • coronary (see also Ischemia, heart) 414.9
  • Deformity 738.9
    • artery (congenital) (peripheral) NEC (see also Deformity, vascular) 747.60
    • coronary artery (congenital) 746.85
      • acquired (see also Ischemia, heart) 414.9
  • Degeneration, degenerative
    • heart (brown) (calcareous) (fatty) (fibrous) (hyaline) (mural) (muscular) (pigmentary) (senile) (with arteriosclerosis) (see also Degeneration, myocardial) 429.1
      • amyloid 277.39 [425.7]
      • atheromatous - see Arteriosclerosis, coronary
      • gouty 274.82
      • hypertensive (see also Hypertension, heart) 402.90
      • ischemic 414.9
      • valve, valvular - see Endocarditis
  • Disease, diseased - see also Syndrome
    • heart (organic) 429.9
      • with
        • acute pulmonary edema (see also Failure, ventricular, left) 428.1
          • hypertensive 402.91
          • kidney disease - see Hypertension, cardiorenal
          • rheumatic fever (conditions classifiable to 390)
      • amyloid 277.39[425.7]
      • aortic (valve) (see also Endocarditis, aortic) 424.1
      • arteriosclerotic or sclerotic (minimal) (senile) - see Arteriosclerosis, coronary
      • artery, arterial - see Arteriosclerosis, coronary
      • atherosclerotic - see Arteriosclerosis, coronary
      • beer drinkers' 425.5
      • beriberi 265.0 [425.7]
      • black 416.0
      • congenital NEC 746.9
        • cyanotic 746.9
        • maternal, affecting fetus or newborn 760.3
        • specified type NEC 746.89
      • congestive (see also Failure, heart) 428.0
      • coronary 414.9
      • cryptogenic 429.9
      • due to
      • fetal 746.9
      • fibroid (see also Myocarditis) 429.0
      • functional 427.9
      • glycogen storage 271.0 [425.7]
      • gonococcal NEC 098.85
      • gouty 274.82
      • hypertensive (see also Hypertension, heart) 402.90
      • hyperthyroid (see also Hyperthyroidism) 242.9 [425.7]
      • incompletely diagnosed - see Disease, heart
      • ischemic (chronic) (see also Ischemia, heart) 414.9
        • acute (see also Infarct, myocardium) 410.9
          • without myocardial infarction 411.89
            • with coronary (artery) occlusion 411.81
        • asymptomatic 412
        • diagnosed on ECG or other special investigation but currently presenting no symptoms 412
      • kyphoscoliotic 416.1
      • mitral (see also Endocarditis, mitral) 394.9
      • muscular (see also Degeneration, myocardial) 429.1
      • postpartum 674.8
      • psychogenic (functional) 306.2
      • pulmonary (chronic) 416.9
      • rheumatic (chronic) (inactive) (old) (quiescent) (with chorea) 398.90
        • active or acute 391.9
          • with chorea (active) (rheumatic) (Sydenham's) 392.0
          • specified type NEC 391.8
        • maternal, affecting fetus or newborn 760.3
      • rheumatoid - see Arthritis, rheumatoid
      • sclerotic - see Arteriosclerosis, coronary
      • senile (see also Myocarditis) 429.0
      • specified type NEC 429.89
      • syphilitic 093.89
      • thyroid (gland) (see also Hyperthyroidism) 242.9 [425.7]
      • thyrotoxic (see also Thyrotoxicosis) 242.9 [425.7]
      • tuberculous (see also Tuberculosis) 017.9 [425.8]
      • valve, valvular (obstructive) (regurgitant) - see also Endocarditis
        • congenital NEC (see also Anomaly, heart, valve) 746.9
      • vascular - see Disease, cardiovascular
  • Incompetency, incompetence, incompetent
    • chronotropic 426.89
      • with
        • autonomic dysfunction 337.9
        • ischemic heart disease 414.9
        • left ventricular dysfunction 429.89
        • sinus node dysfunction 427.81
  • Ischemia, ischemic 459.9
    • cardiac (see also Ischemia, heart) 414.9
    • coronary (chronic) (see also Ischemia, heart) 414.9
    • heart (chronic or with a stated duration of over 8 weeks) 414.9
      • acute or with a stated duration of 8 weeks or less (see also Infarct, myocardium) 410.9
        • without myocardial infarction 411.89
          • with coronary (artery) occlusion 411.81
      • subacute 411.89
    • supply (see also Angina) 414.9
  • Lesion(s)
    • coronary artery (see also Ischemia, heart) 414.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 414.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.