We have their has been significant changes in the number of diagnosis codes in ICD 10 version. When we were using ICD 9 codes we never has to confusion in choosing the correct codes except few complicate ones like sepsis, pregnancy complications etc. But, in ICD 10 codes it is sometimes difficult to find an easy codes. For example, earlier we had only few ICD 9 codes for Heart failure but the new ICD 10 codes for heart failure has increased significantly. Category 428 was used in ICD 9 for coding heart failure and ICD 10 we have I50 category to be used for coding heart failure. Now, if you compare both these category, you will find ICD 10 codes have turned alphanumeric and have high number of codes compared to ICD 9 for heart failure.

Best Coding tips for Heart Failure ICD 10 codes

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ICD 9 and ICD 10 difference for Heart Failure

Let us take an example of coding ICD 9 and ICD 10 codes for heart failure.

ICD 9 code
Code Description
ICD 10 code
Heart Failure
Left ventricular failure
Systolic heart failure
Dyastolic heart failure
combined systolic and diastolic heart failure
Heart failure, unspecified

New ICD 10 codes added for Heart Failure

There is number of ICD 10 new codes have been added in 2016. These ICD 10 codes are very specific and will give more accurate information about the diagnosis. Checkout the below list of ICD 10 code for Heart Failures.


I50.1                Left ventricular failure

I50.20             Unspecified systolic (congestive) heart failure

I50.21             Acute systolic (congestive) heart failure

I50.22            Chronic systolic (congestive) heart failure

I50.23            Acute on chronic systolic (congestive) heart failure

I50.30           Unspecified diastolic (congestive) heart failure

I50.31            Acute diastolic (congestive) heart failure

I50.32            Chronic diastolic (congestive) heart failure

I50.33            Acute on chronic diastolic (congestive) heart failure

I50.40           Unspecified combined systolic (congestive) and diastolic (congestive) heart failure

I50.41            Acute combined systolic (congestive) and diastolic (congestive) heart failure

I50.42           Chronic combined systolic (congestive) and diastolic (congestive) heart failure

I50.43           Acute on chronic combined systolic (congestive) and diastolic (congestive) heart failure

For more information about Heart failure coding in ICD 10, coder can refer below website as well.