ICD-10 Compliance
Specifying anatomical location and laterality required by ICD-10 is easier than you think. This detail reflects how
physicians and clinicians communicate and to what they pay attention - it is a matter of ensuring the information is
captured in your documentation.
In ICD-10-CM, there are three main categories of changes:
- Definition Changes
- Terminology Differences
- Increased Specificity
For cardiology, the focus is increased specificity and documenting the downstream effects of the patient’s condition.
ACUTE MYOCARDIAL INFARCTION (AMI)
Definition Change
When documenting hypertension, include the following:
1. Timeframe
An AMI is now considered “acute” for 4 weeks from the time of the incident,
a revised timeframe from the current ICD-9 period of 8 weeks.
2. Episode of care
ICD-10 does not capture episode of care (e.g. initial, subsequent,
sequelae).
3. Subsequent AMI
ICD-10 allows coding of a new MI that occurs during the 4 week “acute
period” of the original AMI.
ICD-10 Code Examples
I21.02 - ST elevation (STEMI) myocardial infarction involving left anterior
descending coronary artery
I21.4 - Non-ST elevation (NSTEMI) myocardial infarction
I22.1 - Subsequent ST elevation (STEMI) myocardial infarction of inferior wall
HYPERTENSION
Definition Change
In ICD-10, hypertension is defined as essential (primary).
The concept of “benign or malignant” as it relates to
hypertension no longer exists.
When documenting hypertension, include the following:
1. Type e.g. essential, secondary, etc.
2. Causal relationship e.g. Renal, pulmonary, etc.
ICD-10 Code Examples
I10 - Essential (primary) hypertension
I11.9 - Hypertensive heart disease without heart failure
I15.0 - Renovascular hypertension
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