Question

a 6 - year - old patient is seen in the office for acute otitis media, coded as h66.90. this is an example of what icd - 10 - cm convention? o nec o nos o category o etiology/manifestation code

Explanation:

In ICD - 10 - CM, "NOS" stands for "Not Otherwise Specified" and "NEC" stands for "Not Elsewhere Classified". The code H66.90 for acute otitis media is a specific category code. It doesn't represent etiology or manifestation. It is a category code that classifies the condition within the ICD - 10 - CM system.

Answer:

Category