412Old myocardial infarction
- Legacy / Not Valid for Submission
- Replaced October 1, 2015
412 is a legacy ICD-9-CM diagnosis code for old myocardial infarction. It was valid on U.S. claims through September 30, 2015 and cannot be reported for services on or after October 1, 2015, when ICD-10-CM replaced the ICD-9 code set. Under the CMS General Equivalence Mappings, its ICD-10-CM replacement is I25.2 (Old myocardial infarction), flagged as a direct match.
Code Identity
Convert 412 to ICD-10-CM
Based on the final CMS General Equivalence Mappings (GEMs), 412 crosswalks to the following ICD-10-CM code.
Index of Diseases References
Entries in the final ICD-9-CM Index to Diseases and Injuries that point to 412. Tap the icons for the official index conventions.
- Disease diseased SEE ALSO Syndrome
- History personal of
- cardiovascular disease V12.50
- myocardial infarction 412
- circulatory system disease V12.50
- myocardial infarction 412
- myocardial infarction 412
- cardiovascular disease V12.50
- Infarct infarction
- myocardium myocardial acute or with a stated duration of 8 weeks or less with hypertension 410.9
- diagnosed on ECG but presenting no symptoms 412
- healed or old currently presenting no symptoms 412
- past diagnosed on ECG or other special investigation but currently presenting no symptoms 412
- with symptoms NEC 414.8
- previous currently presenting no symptoms 412
- myocardium myocardial acute or with a stated duration of 8 weeks or less with hypertension 410.9
- Occlusion
- artery NEC SEE ALSO Embolism artery 444.9
- coronary thrombotic SEE ALSO Infarct myocardium 410.9
- healed or old 412
- coronary thrombotic SEE ALSO Infarct myocardium 410.9
- coronary artery thrombotic SEE ALSO Infarct myocardium 410.9
- healed or old 412
- artery NEC SEE ALSO Embolism artery 444.9
- Scar scarring SEE ALSO Cicatrix 709.2
- myocardium myocardial 412
- Thrombosis thrombotic marantic multiple progressive vein vessel 453.9
- artery arteries postinfectional 444.9
- coronary SEE ALSO Infarct myocardium 410.9
- healed or specified as old 412
- coronary SEE ALSO Infarct myocardium 410.9
- cardiac SEE ALSO Infarct myocardium 410.9
- healed or specified as old 412
- coronary artery SEE ALSO Infarct myocardium 410.9
- healed or specified as old 412
- intramural SEE ALSO Infarct myocardium 410.9
- healed or specified as old 412
- mural heart chamber SEE ALSO Infarct myocardium 410.9
- healed or specified as old 412
- artery arteries postinfectional 444.9
Information for Patients
Heart Attack
Each year almost 800,000 Americans have a heart attack. A heart attack happens when blood flow to the heart suddenly becomes blocked. Without the blood coming in, the heart can't get oxygen. If not treated quickly, the heart muscle begins to die.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Questions About 412
Is 412 (old myocardial infarction) still a valid code?
No. This code belonged to ICD-9-CM, which the United States retired after September 30, 2015. Claims with dates of service on or after October 1, 2015 must use ICD-10-CM codes, such as its replacement I25.2.
What is the ICD-10 replacement for 412?
The General Equivalence Mappings crosswalk this code directly to ICD-10-CM I25.2 (Old myocardial infarction), a one-to-one match.
What did 412 mean?
In the final ICD-9-CM release, this code described old myocardial infarction. It sat in block 412 Old myocardial infarction under Diseases of the circulatory system (390–459).
