Who Should Make Medical Necessity Decisions in a TPA?

What defines a medical necessity determination?

A medical necessity determination establishes whether a service is appropriate for a member's condition under a self-funded or fully insured plan's specific rules. Plan documents define medically necessary care based on accepted medical practice standards, specific diagnoses, and the availability of less costly alternative treatments. This process applies a strict plan definition to a single member's unique clinical facts.

Medical necessity strictly differs from standard benefit decisions. Key non-clinical benefit decisions include:

• Confirming active member eligibility on the date of service.
• Verifying if a specific service category is a covered benefit.
• Checking whether required prior authorization was obtained.
• Calculating allowable charges and applicable member cost-sharing.

Benefit decisions rely purely on the plan document and claim data. Medical necessity decisions rely on the clinical record and require a licensed professional qualified to interpret medical histories, operative reports, and imaging results.

Claims examiner vs clinician: Who decides what?

An examiner decides everything about a claim that does not require clinical judgment. When a pended claim requires clinical review, the examiner verifies eligibility, coverage, and cost-sharing, then routes the clinical question to the proper queue.

To clarify who decides what on a claim in a TPA, this table outlines the strict division of labor:

A service explicitly excluded by the plan is denied by the examiner without ever reaching a clinician. Proper triage keeps the clinician's queue limited to claims genuinely requiring medical judgment.

Why is a clinical review in a TPA legally required?

A licensed clinician must evaluate these files because reading medical records against procedural criteria requires formal medical training. An examiner can verify that a clinical criteria document is attached, but determining if the patient's symptoms meet those criteria is exclusively a medical judgment.

External regulatory bodies strictly enforce this standard. The claims procedure regulation for group health plans under the Employee Retirement Income Security Act (ERISA) dictates that an appeal of an adverse benefit determination based in whole or in part on a medical judgment must be decided in consultation with a health care professional who has "appropriate training and experience in the field of medicine involved in the medical judgment." Furthermore, many states mandate that an adverse medical necessity determination for an insured plan be conducted by a licensed physician or a clinical peer.

A TPA's agreements with plan sponsors and stop-loss carriers routinely dictate exactly who is authorized to make these determinations. A TPA allowing an examiner or software program to issue a medical necessity denial assumes severe, unnecessary legal risk.

Can software automate medical necessity decisions in a TPA?

Software should never independently execute a medical necessity decision in a TPA. This is because adverse determinations trigger formal appeal rights, and accountability must rest with a named, licensed reviewer. If an appeal asks who decided the outcome, the answer must be a qualified human being.

Criteria are inherently written for clinicians to apply with professional discretion. A patient record might not match a criterion word-for-word but still unequivocally establish necessity. Conversely, a record matching every word might describe a patient for whom the procedure is entirely inappropriate. Software that applies criteria mechanically generates denials that clinicians later overturn on appeal, alongside approvals no clinician would authorize.

Daybook Health's position is unconditional: 100% of denial and medical necessity decisions must be made by the TPA's human staff. Daybook's technology prepares the file, but an examiner or clinician ultimately makes every single decision.

How do AI agents assist prior authorization clinical review?

While software cannot decide, it handles the vast majority of the elapsed time and labor required before a decision occurs. Utilizing AI agents accelerates turnaround times because clinical review delays usually stem from waiting for records and assembling files, rather than the clinician's actual reading time.

The preparation agents do before a person decides involves:

• Reading plan documents to locate specific authorization rules and coverage provisions.
• Pulling the exact clinical criteria required for the requested service.
• Requesting, tracking, and attaching provider medical records.
• Scanning lengthy faxed records to locate passages relevant to each specific criterion.
• Pre-filling request forms with verbatim text from the record for the clinician to review.

Daybook Health's prior authorization workflow follows this exact sequence. Agents compile a complete, optimized request and place it directly in front of the clinician. Finding a fact in a record is preparation; determining if that fact justifies surgery is a medical necessity decision.

How should a utilization review self-funded plan document decisions?

Thorough documentation ensures all parties understand why a determination was made and protects the TPA during audits. A TPA must document the applied plan provision, the criteria utilized, the specific records reviewed, the deciding clinician's name, the date, and the rationale in the clinician's own words.

Understanding how a medical necessity denial is documented and appealed serves three distinct audiences:

1. Members and providers: To understand the basis for the denial and their legal appeal rights.
2. Plan sponsors and stop-loss carriers: To audit financial and clinical compliance.
3. TPA quality programs: To ensure determination consistency across the clinical team.

When AI agents perform the preparation, the system logs a comprehensive audit trail detailing what data was gathered, its source, and the exact timestamp. Daybook Health embeds this complete audit trail on every claim it touches, pricing its preparation tools purely by usage with no subscription fees.