
© 2017
Coding Diseases for ICD-10-CM
Chapter 9 continued
•Subcategories of I25.1 identifies the coronary vessel involved (native or bypassed) and the presence or absence of angina•Examples of other forms of chronic ischemic heart disease that have codes available are:
•
Review coding notes under subcategory I25.8

© 2017
Coding Diseases for ICD-10-CM
Chapter 9 continued

© 2017
Coding Diseases for ICD-10-CM
Chapter 9 continued
•
Category I50, is for heart failure
•
The effects of heart failure are:
–
Blood does not circulate properly
–
it slows down - so fluid collects in the
tissues. This produces congestion and swelling in the extremities and fluid to
collect in the lungs and hampers the kidney’s ability to filter and dispose of
waste
•
There are two types of left-sided heart failure
–
Systolic failure: here, the left ventricle loses it ability to contract normally and the
heart cannot pump to force blood into circulation
–
Diastolic failure: here, the left ventricle loses its ability to relax normally because
the muscle is stiff and the heart cannot properly fill with blood during the resting
period between each beat
•
Systolic and diastolic heart failure may be the following types
o
Acute
o
Chronic
o
Acute on chronic
Meaning, the patient may have a chronic condition of heart failure with an acute
flare-up

© 2017
Coding Diseases for ICD-10-CM
Chapter 9 continued
•
Right-sided heart failure is usually the result of left-
sided failure.
•
Blood returns to the heart through veins through
the right atrium and into the right ventricle
–
the
right ventricle pumps the blood into the lungs to be
replenished with oxygen
•
When the right side loses pumping power, blood
backs up in the body’s veins, causes swelling in
the legs and ankles
