Step 2. Diagnosis:

Select a Major Diagnosis from Component A - Activity

A.??.?.?

A refers to: Activity which may be described as: Cluster of elements that involve the use of energy in carrying out musculoskeletal and bodily actions.

Possible Sub-Diagnoses

Component Code Concept Definition
A 01.0 Activity Alteration Change in or modification of energy used by the body
A 02.0 Musculoskeletal Alteration Change in or modification of the muscles, bones or support structures