BA42.1

ICD-11 MMS 2026-01

Subsequent myocardial infarction, non-ST elevation myocardial infarction

Description

Extension or recurrent myocardial infarction. For morbidity coding, this category should be assigned for infarction of any myocardial site, occurring within 4 weeks (28 days) from onset of a previous infarction. This most commonly results from severe obstruction, but not total occlusion, of the culprit coronary artery.

Index terms

  • Subsequent myocardial infarction, non-ST elevation myocardial infarction
  • Subsequent NSTEMI
  • subsequent non ST segment elevation myocardial infarction
Show allHide
  • Subsequent myocardial infarction, non-ST elevation myocardial infarction, anterior wall
  • Subsequent NSTEMI, anterior wall
  • Subsequent myocardial infarction, non-ST elevation myocardial infarction, inferior wall
  • Subsequent NSTEMI, inferior wall
  • Subsequent myocardial infarction, non-ST elevation myocardial infarction, other site
  • Subsequent NSTEMI, other site

Exclusions from above levels

  • BA50 – specified as chronic or with a stated duration of more than 4 weeks (more than 28 days) from onset
  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
Show allHide
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 20 – Congenital malformations, deformations and chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • BA42.0 – Subsequent myocardial infarction, ST elevation myocardial infarction
  • BA42.Z – Subsequent myocardial infarction, unspecified

Foundation entity

Subsequent myocardial infarction, non-ST elevation myocardial infarction – http://id.who.int/icd/entity/2070501946

Allowed postcoordination axes

Part of: BA42: Subsequent myocardial infarction › 11: Diseases of the circulatory system