Step 2. Diagnosis:

Select a Major Diagnosis from Component I - Metabolic

I.??.?.?

I refers to: Metabolic which may be described as: Cluster of elements that involve the endocrine and immunological processes.

Possible Sub-Diagnoses

Component Code Concept Definition
I 22.0 Endocrine Alteration Change in or modification of internal secretions or hormones
I 23.0 Immunologic Alteration Change in or modification of the immune system