POS 31 in Medical Billing: The Complete 2026 Guide to Skilled Nursing Facility Claims

POS 31 is the Place of Service code for a Skilled Nursing Facility. It’s a two-digit code you report on professional claims, including the CMS-1500, to show that care was delivered to a patient during a covered Medicare Part A stay. Place of service 31 applies when the patient has an active Part A benefit […]