Myocardial infarction: Difference between revisions

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{{PreICD10 dx| NewDxArticle = Myocardial infarction, acute (AMI), NOS}}  
{{PreICD10 dx| NewDxArticle = Myocardial infarction, acute (AMI), NOS}}  
{{PreICD10 dx| NewDxArticle = Myocardial infarction, acute (AMI), transmural (Q-wave)}}
{{PreICD10 dx| NewDxArticle = Myocardial infarction (STEMI), acute (AMI), transmural (Q-wave)}}
{{PreICD10 dx| NewDxArticle = Myocardial infarction, acute (AMI), subendocardial/non-transmural (non-Q-wave)}}  
{{PreICD10 dx| NewDxArticle = Myocardial infarction (NSTEMI), acute (AMI), subendocardial/non-transmural (non-Q-wave)}}  


{{DX tag | Cardiovascular(old) | Medical Problem| [[:Category: Myocardial infarction | Myocardial infarction]] | Yes-see [[:Category: Myocardial infarction | Myocardial infarction]] |  
{{DX tag | Cardiovascular Problems | Medical Problem| Myocardial infarction | | Myocardial infarction |  
*10200 - Myocardial Infarction
*10200 - Myocardial Infarction
*10201 - Myocardial Infarction - Anterior
*10201 - Myocardial Infarction - Anterior
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'''Item below not allowed in comorbid
'''Item below not allowed in comorbid
*'''10210 - Myocardial Infarction aborted with TPA
*'''10210 - Myocardial Infarction aborted with TPA
  | Yes  | 1 |CC & Med | Currently Collected | | ||}}
  | Yes  | 1 |CC & Med | | | ||}}


In CCI/ICD10 this will be coded by coding the MI as an ICD10 dx, and then [[Pharmacotherapy, thrombolytic agent]] with the [[CCI component 1 codes - what organ was something done to]].  
In CCI/ICD10 this will be coded by coding the MI as an ICD10 dx, and then [[Pharmacotherapy, thrombolytic agent]] with the [[CCI component 1 codes - what organ was something done to]].  
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*Documented CPK rise or classic EKG changes
*Documented CPK rise or classic EKG changes


==Proposed coding of type 2 MI==
== MI Coding instructions ==
{{discussAllan | how to code Type 2 MIs}}
MIs are occasionally listed as "Type 2 MIs", ie no evidence of coronary artery disease(CAD). This refers to the mechanism, and we don't care about the mechanism. They should be coded based on their manifestation.
 
For ICD 10 instructions for this, see [[Template:ICD10 Guideline MI type vs mechanism]]
 
In the old coding schema, this means:
* ++discussion++ I have no idea what it means in the old schema; I just needed to break out Allan's answer. Chances are similar things apply in the old schema. Leaving the discussion trail in here for now for this.
*I have seen quite a few type 2 MI's and our database really does not deal with this.  A type 2 MI is when there is no evidence of coronary artery disease, but the MI still occurs for other reasons.  It occurs when there is  supply/demand mismatch with no CAD.  The most common one we see is related to prolonged anemia where the pt's oxygen-carrying capacity is reduced.  Another reason would be reduced blood volume (hypovolemia), profound bradycardia, etc.  These conditions can cause an MI even with normal coronary arteries.   
*I have seen quite a few type 2 MI's and our database really does not deal with this.  A type 2 MI is when there is no evidence of coronary artery disease, but the MI still occurs for other reasons.  It occurs when there is  supply/demand mismatch with no CAD.  The most common one we see is related to prolonged anemia where the pt's oxygen-carrying capacity is reduced.  Another reason would be reduced blood volume (hypovolemia), profound bradycardia, etc.  These conditions can cause an MI even with normal coronary arteries.   
* I propose that if there is a supply/demand mismatch with normal coronaries and there is an elevated troponin, we call in a non Q MI (NSTEMI)unless there is a clear diagnosis of a STEMI or other reason for an increased troponin.  The other option is to make a new category for type 2 MI.--[[User:LKolesar|LKolesar]] 14:38, 2015 November 16 (CST)
* I propose that if there is a supply/demand mismatch with normal coronaries and there is an elevated troponin, we call in a non Q MI (NSTEMI)unless there is a clear diagnosis of a STEMI or other reason for an increased troponin.  The other option is to make a new category for type 2 MI.--[[User:LKolesar|LKolesar]] 14:38, 2015 November 16 (CST)
* I don't think this is new...we recognize this in the ACS population...if angio isn't done coronary arteries/status would not be known but we still code as NSTEMI(reviewing the EKGs and cardiology consult notes) and have been for awhile.--[[User:Llemoine|Llemoine]] 14:47, 2015 November 16 (CST)
* I don't think this is new...we recognize this in the ACS population...if angio isn't done coronary arteries/status would not be known but we still code as NSTEMI (reviewing the EKGs and cardiology consult notes) and have been for awhile.--[[User:Llemoine|Llemoine]] 14:47, 2015 November 16 (CST)


{{discussion}}{{ICD10|needs review}}
This question will likely still be relevant in ICD10 coding, so it should be addressed and then moved to the appropriate ICD10 article. Ttenbergen 18:31, 2017 November 12 (CST)




[[Category: Myocardial infarction]]
[[Category:ACS (old)]]
[[Category: Comorbid Diagnosis]]
[[Category: ACS]]

Latest revision as of 10:56, 30 July 2025



Legacy Content

This page is about the pre-ICD10 diagnosis coding schema. See the ICD10 Diagnosis List, or the following for similar diagnoses in ICD10:Myocardial infarction, acute (AMI), NOS, Myocardial infarction (STEMI), acute (AMI), transmural (Q-wave), Myocardial infarction (NSTEMI), acute (AMI), subendocardial/non-transmural (non-Q-wave)

Click Expand to show legacy content.


edit dx infobox
Category/Organ
System:
Category: Cardiovascular Problems (old)

Type:

Category: Medical Problem (old)

Main Diagnosis: Myocardial infarction
Sub Diagnosis:
Diagnosis Code: Myocardial infarction
Comorbid Diagnosis:
  • 10200 - Myocardial Infarction
  • 10201 - Myocardial Infarction - Anterior
  • 10201 - Myocardial Infarction - Anteroseptal
  • 10203 - Myocardial Infarction - Lateral
  • 10204 - Myocardial Infarction - Inferior
  • 10205 - Myocardial Infarction - Posterior
  • 10206 - Myocardial Infarction - Right Ventricle
  • 10207 - Myocardial Infarction - Non Transmural (non Q)
  • 10208 - Myocardial Infarction - Intraoperative
  • 10209 - Myocardial Infarction - Postoperative

Item below not allowed in comorbid

  • 10210 - Myocardial Infarction aborted with TPA
Charlson Comorbid coding (pre ICD10): Yes
Program: 1
Status: CC & Med


In CCI/ICD10 this will be coded by coding the MI as an ICD10 dx, and then Pharmacotherapy, thrombolytic agent with the CCI component 1 codes - what organ was something done to.

Criteria

  • Documented CPK rise or classic EKG changes

MI Coding instructions

MIs are occasionally listed as "Type 2 MIs", ie no evidence of coronary artery disease(CAD). This refers to the mechanism, and we don't care about the mechanism. They should be coded based on their manifestation.

For ICD 10 instructions for this, see Template:ICD10 Guideline MI type vs mechanism

In the old coding schema, this means:

  • ++discussion++ I have no idea what it means in the old schema; I just needed to break out Allan's answer. Chances are similar things apply in the old schema. Leaving the discussion trail in here for now for this.
  • I have seen quite a few type 2 MI's and our database really does not deal with this. A type 2 MI is when there is no evidence of coronary artery disease, but the MI still occurs for other reasons. It occurs when there is supply/demand mismatch with no CAD. The most common one we see is related to prolonged anemia where the pt's oxygen-carrying capacity is reduced. Another reason would be reduced blood volume (hypovolemia), profound bradycardia, etc. These conditions can cause an MI even with normal coronary arteries.
  • I propose that if there is a supply/demand mismatch with normal coronaries and there is an elevated troponin, we call in a non Q MI (NSTEMI)unless there is a clear diagnosis of a STEMI or other reason for an increased troponin. The other option is to make a new category for type 2 MI.--LKolesar 14:38, 2015 November 16 (CST)
  • I don't think this is new...we recognize this in the ACS population...if angio isn't done coronary arteries/status would not be known but we still code as NSTEMI (reviewing the EKGs and cardiology consult notes) and have been for awhile.--Llemoine 14:47, 2015 November 16 (CST)