Cal. Code Regs. Tit. 22, § 97262 - Definition of Data Element for ED and AS-Principal Procedure
The patient's principal procedure is one that is surgical in nature, or carries a procedural risk, or carries an anesthetic risk. The procedure related to the principal diagnosis, as the chief reason for the encounter, shall be selected as the principal procedure. The procedure shall be coded according to the Current Procedural Terminology, Fourth Edition (CPT-4).
Notes
Note: Authority cited: Section 128810, Health and Safety Code. Reference: Sections 128736 and 128737, Health and Safety Code.
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