Template:ICD10 Guideline MI acute vs past history

This template is used to explain when to use current vs past history of MI.

To use:

{{MI acute vs past history}}

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MI - acute vs past history

To decide whether to code an acute MI dx in the Admit Diagnosis or Acquired Diagnosis / Complication, or a Past history, myocardial infarction (old MI) in the Comorbid Diagnosis, consider the following:

• Regarding an MI that occured prior to the current hospitalization -- might be coded as either Comorbid Diagnosis, or a Past history, myocardial infarction (old MI)
• In ICD10 the code for Past history, myocardial infarction (old MI) reads as follows: Healed myocardial infarction -- Past myocardial infarction diagnosed by ECG or other special investigation, but currently presenting no symptoms.
• If the prior MI is still active and we're not dealing with any current complications of it, then instead use one of the AMI codes, as a Comorbid Diagnosis.
• If the prior MI is still active and we are dealing with any current complications of it, then instead use one of the AMI codes, as a Admit Diagnosis.
  • Examples: Papillary muscle rupture or Ongoing angina related to a recent MI prior to this unit/ward admission.
• For a 'missed MI: code it as one of the "...acute..." codes if the missed MI is being treated as an acute MI