Medical Claims Management: How the Process Really Works

For most people, submitting a health insurance claim is a frustrating black box. You receive treatment, you submit paperwork, and then you wait — sometimes for weeks — to find out whether your claim has been approved, partially paid, or rejected. When that treatment happens in a foreign country, the complexity multiplies: different billing systems, different currencies, different regulatory frameworks, and often a language barrier between the patient, the hospital, and the insurer.

Medical claims management is the discipline that sits at the centre of this complexity. Done well, it is invisible — claims are processed quickly, providers are paid accurately, and members receive their reimbursements without drama. Done poorly, it generates disputes, delays, and eroded trust in the entire health insurance system.

This article explains how international medical claims management works from end to end, what a medical TPA does at each stage, and what separates high-performing claims operations from mediocre ones.

Every medical claim — whether it is a routine GP visit or a complex surgical procedure — passes through a predictable sequence of stages:

1. Preauthorisation (for planned treatment)
2. Treatment and billing
3. Claims submission
4. Claims adjudication
5. Payment
6. Appeals and disputes (where applicable)

Understanding each stage helps members, employers, and providers know what to expect — and where to intervene when things go wrong.

Preauthorisation (also called prior authorisation or pre-approval) is the process by which a TPA or insurer reviews a planned medical procedure before it takes place. It is required for most inpatient admissions, surgical procedures, and high-cost outpatient treatments.

Preauthorisation serves three purposes:

Clinical review. The TPA's medical team reviews the proposed treatment against evidence-based clinical guidelines to confirm it is medically necessary and appropriate for the member's condition.

Cost management. The TPA negotiates the treatment cost with the provider before it occurs, preventing billing surprises. In markets without regulated fee schedules, this negotiation can reduce costs by 15–30%.

Coverage confirmation. The member and provider receive written confirmation that the treatment is covered under the policy, eliminating uncertainty about payment.

The process varies by TPA, but typically involves:

1. The treating physician submits a preauthorisation request including the proposed procedure, diagnosis codes, and supporting clinical documentation.
2. The TPA's medical team reviews the request, usually within 24–48 hours for routine cases and 4–8 hours for urgent cases.
3. The TPA issues a preauthorisation letter confirming coverage, the approved treatment, and any conditions (e.g., maximum number of days, approved facility).
4. The provider proceeds with treatment, knowing payment is guaranteed.

Proceeding with treatment that requires preauthorisation without obtaining it first is one of the most common reasons claims are denied or reduced. Most policies allow for retrospective authorisation in genuine emergencies, but this is not guaranteed. Always obtain preauthorisation for planned procedures.

Once treatment is complete, the provider generates a bill. In international healthcare, this is where complexity begins.

Direct billing (also called cashless treatment) means the provider bills the TPA or insurer directly. The member pays nothing upfront — or only their co-payment or deductible. This is the preferred model for members and is available at hospitals within the TPA's direct billing network.

Reimbursement means the member pays the provider upfront and then submits a claim to the TPA for repayment. This is required when treatment is received outside the direct billing network. Reimbursement claims take longer to process and may result in partial payment if the provider's charges exceed the policy's benefit schedule.

A key quality indicator in claims management is the insistence on itemised bills. A global bill ("hospital charges: USD 15,000") provides no basis for clinical review or cost validation. An itemised bill breaks down every charge — room and board, surgical fees, anaesthesia, medications, consumables — allowing the TPA to verify that each charge is appropriate and covered.

Reputable TPAs always request itemised bills and will query or reject global bills. This protects both the insurer and the member.

Claims can be submitted by the provider (in direct billing arrangements) or by the member (in reimbursement arrangements).

A complete claims submission typically requires:

• Completed claim form — member details, policy number, treating provider details
• Itemised bill from the provider
• Medical report or discharge summary from the treating physician
• Diagnosis codes (ICD-10 or local equivalent)
• Procedure codes (CPT, CCAM, or local equivalent)
• Proof of payment (for reimbursement claims)
• Preauthorisation reference number (where applicable)

Incomplete submissions are the single biggest cause of claims delays. A TPA with a strong member services team will proactively contact members to request missing documents rather than simply rejecting the claim.

Modern TPAs offer multiple submission channels:

• Member portal — upload documents directly, track status in real time
• Mobile app — photograph and submit documents from your phone
• Email — for members without portal access
• Post — still required in some markets for original documents

Adjudication is the process of reviewing a submitted claim and determining how much, if anything, should be paid. It is the most technically complex stage of the claims lifecycle.

A claims adjudicator examines:

Policy eligibility. Is the member covered under the policy on the date of service? Is the policy active? Are there any exclusions that apply?

Benefit applicability. Is the treatment covered under the member's benefit schedule? What is the applicable limit, co-payment, or deductible?

Medical necessity. Is the treatment clinically appropriate for the stated diagnosis? Does it meet the insurer's clinical guidelines?

Billing accuracy. Are the charges reasonable and customary for the market? Are there duplicate charges, unbundling, or upcoding?

Coordination of benefits. If the member has more than one health plan, how should the claim be split between insurers?

High-performing TPAs use technology to automate routine claims — a process called straight-through processing (STP). Simple claims that meet all criteria are adjudicated automatically without human intervention, typically within minutes.

Complex claims — those involving high costs, unusual diagnoses, or potential fraud indicators — are flagged for manual review by a clinical or financial specialist.

The STP rate is a key performance indicator for TPA operations. A rate of 80–90% is considered strong. A low STP rate indicates either poor data quality from providers or overly conservative automation rules.

Understanding why claims are reduced or denied helps members and providers avoid common pitfalls:

Once a claim is adjudicated, payment is made to the provider (direct billing) or the member (reimbursement).

Industry benchmarks for claims payment:

• Direct billing claims: 15–30 days from receipt of complete documentation
• Reimbursement claims: 10–20 days from receipt of complete documentation
• Complex or disputed claims: 30–60 days

Delays beyond these benchmarks typically indicate incomplete documentation, a dispute about coverage, or operational inefficiency at the TPA.

International claims involve multiple currencies. A member treated in Thailand submits a claim in Thai Baht; the policy is denominated in USD; the member's bank account is in GBP. The TPA must handle currency conversion accurately and transparently.

Reputable TPAs use published exchange rates (typically mid-market rates from a recognised source) and disclose the rate applied to each claim. Members should check that the exchange rate applied is reasonable.

When a claim is denied or reduced, the member has the right to appeal. A well-run TPA has a clear, accessible appeals process.

1. First-level appeal. The member submits a written appeal with supporting documentation (additional medical records, specialist opinions, etc.). The TPA reviews the appeal, typically within 15–30 days.

2. Second-level appeal. If the first-level appeal is unsuccessful, the member can escalate to a senior clinical reviewer or an independent medical expert.

3. External dispute resolution. In regulated markets, members may be able to refer unresolved disputes to a regulatory body or ombudsman.

• Be specific. Identify exactly which decision you are appealing and why you believe it is incorrect.
• Provide clinical evidence. A letter from your treating physician explaining the medical necessity of the treatment is the most persuasive document in an appeal.
• Reference your policy. Quote the specific policy clause that you believe entitles you to coverage.
• Meet deadlines. Most policies impose time limits on appeals — typically 30–90 days from the date of the denial.

The difference between a good TPA and a mediocre one is most visible in claims management. Here is what separates the best:

Rather than waiting for members to chase claim status, a good TPA proactively communicates at each stage — acknowledgement of receipt, request for additional documents, adjudication decision, payment confirmation.

Claims adjudication is not just a financial exercise — it requires clinical judgement. TPAs with in-house medical directors and clinical reviewers make better, faster decisions on complex claims.

A TPA with strong relationships with its provider network receives better quality documentation, faster responses to queries, and more cooperative behaviour on billing disputes. These relationships are built over years and are a genuine competitive advantage.

Modern claims management platforms automate routine tasks, flag anomalies, and provide real-time visibility to members, providers, and employers. A TPA still processing claims on paper or legacy systems is a liability.

Healthcare fraud is a significant cost driver in international insurance. Sophisticated TPAs use data analytics to identify patterns indicative of fraud — duplicate billing, phantom procedures, inflated charges — and investigate proactively.

If you are an employer with a self-funded or TPA-administered health plan, claims data is your most valuable management tool. Ask your TPA for regular reporting on:

• Claims volume and value by benefit category, geography, and provider
• Average claims turnaround time and STP rate
• Top diagnoses and procedures by cost and frequency
• Preauthorisation approval and denial rates
• Appeals volume and outcomes
• Fraud and abuse findings

This data allows you to identify cost drivers, benchmark performance, and make informed decisions about plan design for the following year.

Medical claims management is the operational backbone of any health insurance programme. When it works well, it is invisible — members receive care, providers receive payment, and employers receive accurate reporting. When it fails, the consequences ripple outward: delayed payments, frustrated members, provider disputes, and inflated costs.

Globalwide Mediassist processes claims across 150+ countries, with a multilingual team, a direct billing network spanning 500+ hospitals, and technology that delivers industry-leading turnaround times. Our preauthorisation team operates 24/7, our clinical reviewers are qualified physicians, and our member portal provides real-time claim status visibility.

Learn more about our claims management services or contact us to discuss how we can improve your organisation's claims experience.