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Acute myocardial infarction of other inferior wall subsequent episode of care (410.42)

ICD-9 code 410.42 for Acute myocardial infarction of other inferior wall subsequent episode of care is a medical classification as listed by WHO under the range -ISCHEMIC HEART DISEASE (410-414).

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Code Descriptor and Instructional Notes
Acute myocardial infarction of other inferior wall subsequent episode of care



diaphragmatic wall NOS (with contiguous portion of intraventricular septum)

inferior (wall) NOS (with contiguous portion of intraventricular septum)

ST elevation myocardial infarction (STEMI) of other inferior wall

Includes: cardiac infarction

coronary (artery):





infarction of heart, myocardium, or ventricle

rupture of heart, myocardium, or ventricle

ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction

any condition classifiable to 414.1-414.9 specified as acute or with a stated duration of 8 weeks or less

The following fifth-digit subclassification is for use with category 410:

0 episode of care unspecified

Use when the source document does not contain sufficient information for the assignment of fifth-digit 1 or 2.

1 initial episode of care

Use fifth-digit 1 to designate the first episode of care (regardless of facility site) for a newly diagnosed myocardial infarction. The fifth-digit 1 is assigned regardless of the number of times a patient may be transferred during the initial episode of care.

2 subsequent episode of care

Use fifth-digit 2 to designate an episode of care following the initial episode when the patient is admitted for further observation, evaluation or treatment for a myocardial infarction that has received initial treatment, but is still less than 8 weeks old.

ICD-9-CM Subcategories/Subclassifications
Category Notes
Chapter Specific Coding Guidelines
CC Exclusion List
Claims Edits
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