Place of Service 81 in Medical Billing: The 2026 AR Recovery Guide for Independent Laboratory Claims
Place of service 81 designates Independent Laboratory in the CMS Place of Service Code Set. It’s the two-digit code your billing team submits in Box 24B of the CMS-1500 when a CLIA-certified independent lab performs and bills for services on a specimen collected at the lab’s own facility. Independent laboratory billing errors on POS 81 […]
Clearinghouse Rejection Codes in Medical Billing: The 2026 AR Recovery Playbook for Billing Teams
Clearinghouse rejection codes are error identifiers returned on a 277CA Claim Acknowledgment transaction when a claim fails pre-submission validation at the medical billing clearinghouse. The claim never reaches payer adjudication. Common triggers include invalid payer IDs, missing NPIs, outdated CPT codes, and patient demographic mismatches. Every clearinghouse rejection in medical billing costs healthcare practices an […]
POS 12 in Medical Billing: The 2026 AR Practitioner’s Guide to Home Visit Claims, Payer Rules, and Denial Recovery
POS 12 in medical billing designates the patient’s home. It’s the two-digit Place of Service code your billing team submits on professional claims to indicate that a healthcare service, such as a home visit, chronic care management, wound care, or palliative care, was provided in the patient’s private residence, not in a facility setting. The […]
CO-167 Denial Code: Official Description, Three Causes, and the Complete AR Resolution Guide
The CO-167 denial code fires when the diagnosis on a claim is not covered by the patient’s insurance plan. CO-167 is CARC 167 on the official X12 Claim Adjustment Reason Code list, and its official description reads: “This (these) diagnosis(es) is (are) not covered.” When it hits your remittance, your team has one question to […]
How Long Does Prior Authorization Take for Medication? The 2026 Provider Guide
Most medication prior authorizations take 1 to 3 business days when documentation is complete. Urgent requests are decided within 24 to 72 hours under Medicare Part D federal regulations. Specialty drugs and biologics extend that window to 5 to 14 business days. But those numbers reflect the payer’s internal decision clock. A 2026 JAMA Health […]