How should emergency department visits be reported on CMS-1500 claims?

• A. Report with CPT/HCPCS code; ignore POS and payer rules for ED.
• B. Report with CPT/HCPCS code; include POS and comply with payer-specific ED rules.
• C. Use ICD-10 code only for ED.
• D. Use a generic ED code regardless of service.

Answer: (B)

Reporting an emergency department visit on a CMS-1500 claim requires using the CPT/HCPCS code that describes the actual ED service provided, and including the Place of Service to indicate the encounter occurred in the Emergency Department, while also following payer-specific ED rules. The CPT/HCPCS code communicates the specific medical service or level of ED evaluation and management performed, which is what drives reimbursement, not just the diagnosis. The Place of Service code (ED) shows the setting of the service and can impact payment and eligibility, so it must be accurate. Some payers have extra requirements for ED encounters—such as specific codes, levels, or modifiers—so complying with those rules is essential. Using only ICD-10 codes describes diagnoses and not the service itself, and using a generic ED code or ignoring POS and payer rules would fail to capture the actual service and the payer's requirements.