icd 9 cm code for acute myocardial infarction

by Fritz Buckridge 5 min read

Table 1
ICD-9-CM CodeDefinitionDefinition
410Acute myocardial infarctionAcute myocardial infarction
410.x0Acute myocardial infarction: episode of care unspecifiedSubsequent myocardial infarction
410.x1Acute myocardial infarction: initial episode of care
410.0Acute myocardial infarction of anterolateral wall
15 more rows
Jun 28, 2012

When to code an old myocardial infarction?

  • The ICD-10-CM codes for type 1 STEMI and NSTEMI identify the site, such as the anterolateral wall or true posterior wall.
  • Codes I21.01-I21.3 are used for type 1 STEMI MI.
  • If the provider documents acute MI but does not include the specific location, the appropriate code is to assign is I21.3.

More items...

What is the treatment for acute myocardial infarction?

  • The patient should present to the emergency department as soon as possible once symptoms appear
  • If no response is seen with nitroglycerin, the patient should contact 911 for transport to the nearest emergency room
  • Eat a low salt diet
  • Enroll in cardiac rehab
  • Discontinue smoking
  • Remain compliant with medications

What is the diagnosis code for acute myocardial infarction?

Acute myocardial infarction, unspecified

  • Valid for Submission. I21.9 is a billable diagnosis code used to specify a medical diagnosis of acute myocardial infarction, unspecified.
  • Tabular List of Diseases and Injuries. ...
  • Index to Diseases and Injuries. ...
  • Approximate Synonyms
  • Replacement Code
  • Convert I21.9 to ICD-9 Code
  • Information for Patients. ...

What does acute myocardial infarction mean?

Acute myocardial infarction, or heart attack, is a serious condition that occurs when blood flow to the heart is cut off, which requires immediate medical treatment. Fortunately, there are many ways to prevent complications associated with this condition and minimize the long-term effects on health.


What is the ICD-9 code for myocardial infarction?

Acute myocardial infarction (ICD-9/ICD-9-CM: 410; or ICD-10-CA: I21, I22)

What is the code for acute myocardial infarction?

ICD-10 code I21 for Acute myocardial infarction is a medical classification as listed by WHO under the range - Diseases of the circulatory system .

What is the ICD-9 code for STEMI?

ICD-9 codes 410.0-410.6 and 410.8 were used to define STEMI while codes 410.7 or 410.9 defined NSTEMI. STEMI infarct location was assessed by ECG and categorized as anterior, inferior, lateral, or multi-location.

What is the ICD 11 code for acute myocardial infarction?

BA41. Z Acute myocardial infarction, unspecified - ICD-11 MMS.

How long can you code an acute MI?

Coding Guidance An acute MI should be reported for up to 4 weeks (28 days) with a code from category I21.

How long do you code an MI as current?

Acute Myocardial Infarction vs. History of MI​ICD-10​Description​Coding Guidance​I22.x ​Subsequent MI​Acute MI occurring within 4 weeks (28 days) of a previous acute MI​I25.2​Old MI​Healed or past MI diagnosed by ECG or other investigation, currently presenting no symptoms.​1 more row•Aug 11, 2021

What is the ICD-9 code for chest pain?

ICD-Code R07. 9 is a billable ICD-10 code used for healthcare diagnosis reimbursement of Chest Pain, Unspecified. Its corresponding ICD-9 code is 786.5. Code R07.

What is Nstemi diagnosis?

An NSTEMI is diagnosed when your EKG does not show the type of abnormality seen in a STEMI but your blood tests show that your heart is stressed. Unstable angina. This is the least severe type of ACS. It can be caused when a blood clot blocks a coronary artery partially or totally.

What is the ICD-9 code for pneumonia?

486Most patients (110 360 [68.3%]) had an ICD-9 code for pneumonia, organism unspecified (486). The organisms most frequently specified were influenza (5891 [3.6%]), S pneumoniae (4090 [2.5%]), and methicillin-resistant Staphylococcus aureus (MRSA) (3747 [2.3%]).

What is the ICD 10 code for inferior infarct?

I21. 1 - ST elevation (STEMI) myocardial infarction of inferior wall | ICD-10-CM.

How do you code Acute ST elevation myocardial infarction involving the Inferolateral wall?

410.21 - Acute myocardial infarction of inferolateral wall, initial episode of care.

What is I21?

Acute myocardial infarction I21-

How many types of myocardial infarction are there?

A heart attack is also known as a myocardial infarction. The three types of heart attacks are: ST segment elevation myocardial infarction (STEMI) non-ST segment elevation myocardial infarction (NSTEMI)

What is code STEMI?

Code STEMI is a program designed to help medical professionals recognize heart attacks and immediately activate a protocol that ensures patients receive lifesaving care as quickly as possible. At NHRMC, we focus on reducing heart attack treatment times to give the best chance for a full recovery.

What is STEMI and NSTEMI?

STEMI results from complete and prolonged occlusion of an epicardial coronary blood vessel and is defined based on ECG criteria..NSTEMI usually results from severe coronary artery narrowing, transient occlusion, or microembolization of thrombus and/or atheromatous material.

Not Valid for Submission

410.80 is a legacy non-billable code used to specify a medical diagnosis of acute myocardial infarction of other specified sites, episode of care unspecified. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

Convert 410.80 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

Information for Patients

Each year over a million people in the U.S. have a heart attack. About half of them die. Many people have permanent heart damage or die because they don't get help immediately. It's important to know the symptoms of a heart attack and call 9-1-1 if someone is having them. Those symptoms include

ICD-9 Footnotes

General Equivalence Map Definitions The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

What is the ICd 9 code for myocardial infarction?

Myocardial infarction (MI) is the death of myocardial tissue usually caused by a blocked coronary artery. Acute MI (AMI) is classified to ICD-9-CM category 410 , with a fourth and fifth digit needed to completely code the condition.

What is the ICd 9 code for myocardial infarction of unspecified site?

Code 410.9x, Myocardial infarction of unspecified site, should only be assigned when there is no documentation specifying the location. Although not a reliable diagnostic tool, the ECG report is a reliable source of information regarding the AMI site. If a diagnostic report (eg, ECG), provides specificity to a confirmed diagnosis (MI), it is appropriate to assign the more specific code ( AHA Coding Clinic for ICD-9-CM, 1999, first quarter, page 5).

What is the 5th digit subclassification for 410?

A fifth digit of 1 indicates the first time the patient was seen and treated for MI and may be used at the first hospital where the patient received treatment and at other acute care hospitals to which the patient is subsequently transferred (without interim discharge). For example, if a patient was admitted to Hospital A for AMI and then transferred to Hospital B for a cardiac bypass, code 410.x1 would be assigned as the principal diagnosis for both acute care hospital stays. If the patient was then readmitted to Hospital A for recovery without being discharged home, code 410.x1 could still be assigned as the principal diagnosis.

What is the ICD-9 code for demand ischemia?

If no additional clarification can be obtained, assign code 411.89 for acute demand ischemia. This is unofficial advice, since there is no direction provided in AHA Coding Clinic for ICD-9-CM. Please note that to assign code 411.89, the physician must state that it is an acute condition, and it must be related to the coronary arteries.

Is MI an extension?

Sometimes, the MI extends to the same site while in house for the original MI. In that case, it is not considered an extension, since it was at the same site during the same admission. However, if it extended to a different location during the same admission, then assign an additional code from category 410 with a fifth digit of 1 to show the new site to which it extended ( Coding Clinic, 1993, fifth issue, pages 13-14.)

What is the ICd 10 code for acute myocardial infarction?

Acute myocardial infarction, unspecified 1 I21.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 2 The 2021 edition of ICD-10-CM I21.9 became effective on October 1, 2020. 3 This is the American ICD-10-CM version of I21.9 - other international versions of ICD-10 I21.9 may differ.

When will ICD-10-CM I21.9 be released?

The 2022 edition of ICD-10-CM I21.9 became effective on October 1, 2021.

What is the code for myocardial infarction?

Codes. I21 Acute myocardial infarction.

What is a myocardial disorder?

A disorder characterized by gross necrosis of the myocardium; this is due to an interruption of blood supply to the area.

What causes a heart muscle to die?

A blockage that is not treated within a few hours causes the affected heart muscle to die. Gross necrosis of the myocardium, as a result of interruption of the blood supply to the area, as in coronary thrombosis. Gross necrosis of the myocardium, as a result of interruption of the blood supply to the area.