Answer:
The answer is option A.
Step-by-step explanation:
ICD-9-CM are index subterm (in alphabetical order) that indicates the presence of cause-and-effect (or causal) relationship between two conditions.ICD-9-CM Volume 3 is a system of procedural codes used by health insurers to classify medical procedures for billing purposes. It is a subset of the International Statistical Classification of Diseases and Related Health Problems (ICD) 9-CM.
ICD-9-CM procedure codes are
A. listed in alphabetical order.
ICD-9-CM are index subterm (in alphabetical order) that indicates the presence of cause-and-effect (or causal) relationship between two conditions.
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