412 OHIP code: Ischaemic and Other Forms of Heart Disease: Old myocardial infarction, chronic coronary artery disease of arteriosclerotic heart disease, without symptoms

412 is the OHIP diagnostic code for “Ischaemic and Other Forms of Heart Disease: Old myocardial infarction, chronic coronary artery disease of arteriosclerotic heart disease, without symptoms” in Ontario Ministry of Health’s March 2026 release, in effect from Mar 13, 2026.

Official description

412

Ischaemic and Other Forms of Heart Disease: Old myocardial infarction, chronic coronary artery disease of arteriosclerotic heart disease, without symptoms

OHIP diagnostic codes (ICD-9) · Ontario

Notes for 412

Ontario Ministry of Health’s list gives no includes, excludes or other notes for 412 or the headings above it.

Where 412 sits

  1. 1SectionDiseases of the Circulatory System
  2. 2Valid code 412Ischaemic and Other Forms of Heart Disease: Old myocardial infarction, chronic coronary artery disease of arteriosclerotic heart disease, without symptoms

Source and release

Data release
OHIP · March 2026
Effective date
Mar 13, 2026

This page is built from the OHIP catalog that Vero Codes reads when it suggests codes: Ontario Ministry of Health’s March 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

Frequently asked questions

What does OHIP diagnostic code 412 mean?

412 is the OHIP diagnostic code for “Ischaemic and Other Forms of Heart Disease: Old myocardial infarction, chronic coronary artery disease of arteriosclerotic heart disease, without symptoms” in Ontario Ministry of Health’s OHIP March 2026 release.

Where is 412 in the OHIP list?

412 is listed under Diseases of the Circulatory System.

What coding notes apply to 412?

Ontario Ministry of Health’s list gives no includes, excludes or other notes for 412 or the headings above it.

Which OHIP release does this page use?

It uses Ontario Ministry of Health’s March 2026 release, in effect from Mar 13, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.