I24

Non-Billable
ChapterI00–I99
Rankcategory
Official Description

Other acute ischemic heart diseases

Metadata & Insights
  • Non-billable category (requires more specific sub-code).
  • Chapter 9: Diseases of the Circulatory System (I00-I99).

CH9 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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.-)

I20-I25 Parent Instructions

Code Also
  • the presence of hypertension (I10-I1A)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • angina pectoris (I20.-)
  • transient myocardial ischemia in newborn (P29.4)
Excludes2(Not included here. Code separately if applicable.)
  • non-ischemic myocardial injury (I5A)

Clinical Hierarchy

BillableHas subcodes
CH9Diseases of the circulatory system (I00-I99)
I20-I25Ischemic heart diseases (I20-I25)
I24Other acute ischemic heart diseasesNot billable
I24.0Acute coronary thrombosis not resulting in myocardial infarctionBillable
I24.1Dressler's syndromeBillable
I24.8Other forms of acute ischemic heart diseaseSubcodes
I24.9Acute ischemic heart disease, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I24:

blockI20-I25
Ischemic heart diseases (I20-I25)
View context instructions
chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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