Classification of Angina

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:

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Category/Organ System:	Category:Cardiovascular (old)
Type:	Medical Problem
Main Diagnosis:	POST INFARCT ANGINA
Sub Diagnosis:	Post Infarct Angina
Diagnosis Code:	15500
Comorbid Diagnosis:	??? Critical Care and Medicine
Charlson Comorbid coding (pre ICD10):	Currently Collected
Program:
Status:

Classification of Angina according to the Canadian Cardiovascular Society.

Chronic Stable Angina

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:

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edit dx infobox
Category/Organ System:	Category:Cardiovascular (old)
Type:	Medical Problem
Main Diagnosis:	CHRONIC STABLE ANGINA
Sub Diagnosis:	Chronic Stable Angina
Diagnosis Code:
Comorbid Diagnosis:	15800
Charlson Comorbid coding (pre ICD10):	Critical Care and Medicine
Program:
Status:

This is a comorbid code only. We only code whether it is present, the class descriptions below are for reference only.

Class 1

No limitation: Ordinary physical activity does not cause angina such as walking or climbing stairs. Angina with strenuous or rapid or prolonged exertion at work or recreation

Class 2

Slight limitation of ordinary activity. Walking or climbing stairs rapidly, walking uphill, climbing stairs or after meals or in cold weather, wind, under emotional stress or pain during the first hrs. after waking up. Walking more than 2 blocks on the level or climbing more than one flight of stairs at a normal pace in normal conditions.

Class 3

Marked limitation or ordinary activity. Walking one to two blocks on the level and climbing one flight of stairs in normal conditions and at a normal pace.

Class 4

Inability to carry on any physical activity without discomfort. Symptoms of angina are present even at rest.

Unstable Angina

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:

Expand

Click Expand to show legacy content.

edit dx infobox
Category/Organ System:	Category:Cardiovascular (old)
Type:	Medical Problem
Main Diagnosis:	UNSTABLE ANGINA
Sub Diagnosis:	Unstable Angina
Diagnosis Code:	15100
Comorbid Diagnosis:	Critical Care and Medicine
Charlson Comorbid coding (pre ICD10):	Currently Collected
Program:
Status:

We only code whether it is present, the class descriptions below are for reference only.

Class I

New onset, severe or accelerated angina. Subjects with angina of less than 2 months duration. Severe or occurring three or more times per day. Angina that is distinctly more frequent and precipitated by distinctly less exertion. No rest pain in the last 2 months.

Class II

Angina at rest, subacute. Subjects with one or more episode of angina at rest during the preceding month but not within the preceding 48 hrs.

Class III

Angina at rest, acute. Subjects with one or more episodes of angina at rest within the preceding 48 hrs.

Clinical Circumstances

Class A

secondary unstable angina. A clearly identified condition extrinsic to the coronary vascular bed that has intensified myocardial ischemia e.g. anemia, fever, infection, hypotension, tachyarrhythmia, thyrotoxicosis

Class B

Primary unstable angina

Class C

post infarction unstable angina (within 2 weeks of MI)

Discussion

• What is the relevance of the "Clinical Circumstances"Ttenbergen 09:48, 16 May 2008 (CDT)

Template:Discussion (also see discussion sections above)

Discussion

• What is the relevance of this? I took it from the paper manual, but it does not say there why included. Dx coding? APACHE II Chronic entry?
  • The relevance is for all of these things.--LKolesar 21:24, 15 May 2008 (CDT)
    • So does this affect how Chronic Health gets coded? Or how a particular Dx gets coded? Or what? Ttenbergen 12:48, 17 October 2008 (CDT)
    • If the relevance is for all diagnoses, then we should include the diagnosis codes (like in the other dxs) and add it to the diagnosis. If it's for APACHE II, it would be nice to explain the relevance a touch better. If I understand right, we pull the angina score for the APACHE II from the L_Dxs entries, right? If so, then really for APACHE II all we should say is that it's pulled from there, and then link to the Angina DX coding entry, as not to duplicate text in here which can then become inconsistent. Ttenbergen 09:43, 16 May 2008 (CDT)

• provide better reference - the Canadian Cardiovascular Society website only has some of this at best.

I will try to obtain a better reference for this material, I think there is likely a much simpler way of defining this. Then there should be a link to apache, diagnosis and chronic hx. --LKolesar 12:29, 16 May 2008 (CDT)

• Is there a reason the classes are numbered normal for one angina and Roman for the other? Ttenbergen 13:05, 17 October 2008 (CDT)
• This whole section needs a revamp. STABLE ANGINA does not have 4 categories , this should read ANGINA only. Class 3 and 4 in this written section is considered unstable angina. I would personally take out the clinical circumstances section as well. --LKolesar 13:20, 17 October 2008 (CDT)