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I24.9

Acute ischemic heart disease, unspecified

Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 3 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.
Exclusions 14 never code together
I24.9code
Excludes1
  • ischemic heart disease (chronic) NOS (I25.9)I25.9I25.9
I24code
Excludes1
  • angina pectoris (I20.-)I20.-
  • transient myocardial ischemia in newborn (P29.4)P29.4
Excludes2
  • non-ischemic myocardial injury (I5A)I5A
I00-I99chapter
Excludes2
  • certain conditions originating in the perinatal period (P04-P96)P04-P96
  • certain infectious and parasitic diseases (A00-B99)A00-B99
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
  • endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
  • injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
  • neoplasms (C00-D49)C00-D49
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
  • systemic connective tissue disorders (M30-M36)M30-M36
  • transient cerebral ischemic attacks and related syndromes (G45.-)G45.-

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 1
I20-I25block
Code also
  • the presence of hypertension (I10-I1A)I10-I1A
Index entries leading here 3
  • Syndrome — see also Disease
    • coronary
  • Ischemia, ischemic I99.8
    • heart (chronic or with a stated duration of over 4 weeks) I25.9
      • acute or with a stated duration of 4 weeks or less I24.9
      • subacute I24.9
  • Cyanotic heart disease I24.9
Alongside this code 3 same parent — I24
Medications 1

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

CMS22HCC87 CMS28HCC229 ESRD21HCC87 ESRD24HCC87 RX08HCC188

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
I24
Block
I20-I25
Siblings
3

Present FY2024–FY2027.