In coding a patient with hemiplegia caused by a cerebral infarction, which code is appropriate?

The appropriate code for a patient with hemiplegia caused by a cerebral infarction is G81.91. This code specifically identifies hemiplegia as a result of a stroke, indicating that one side of the body is paralyzed due to a cerebral infarction. The code is specific in denoting hemiplegia that is dominant on the right side as a consequence of the infarction.

In contrast, the other options do not accurately capture the condition as defined. G81.90, for instance, signifies hemiplegia that is unspecified, lacking the detailed information regarding its cause or laterality. The code I63.50 refers to a cerebral infarction but does not convey the resulting hemiplegia. Lastly, I11.0 is designated for hypertension and heart disease, which is unrelated to the specific scenario of hemiplegia from a stroke. Thus, G81.91 is the most accurate and clinically relevant code for this situation, clearly linking the hemiplegia to its cause.