Health insurance in the U.S. is massive, projected to reach $1.62 trillion by 2032. Over 300 million American citizens have access to health insurance (as of 2024), and overall healthcare spending was close to $5 trillion as far back as 2022. At this scale, there are often instances of organized fraud, with a 20% increase in healthcare fraud cases over the 5-year period from FY 2020 to FY 2024.

Medical necessity reviews play a central part in combating these cases. These reviews examine whether a treatment, test, or service is appropriate for the patient’s condition. When done correctly, medical necessity reviews play a critical role in optimizing costs and increasing sustainability for insurance businesses. In this blog, you will see what medical claims processing means, what a medical necessity review involves, why it’s important, and the best practices that insurers can use to build stronger review structures.

What is medical claims processing?

Medical claims processing refers to the administrative process by which insurance companies receive, investigate, and adjudicate medical claims submitted by healthcare providers to determine payment eligibility. This process has four main stages:

Stage	What happens	Why it matters
Claim submission	Provider or member sends the claim with supporting records and bills	Starts the review cycle
Verification	Eligibility, policy terms, and document completeness are checked	Stops avoidable errors early
Adjudication	The claim is evaluated against pre-defined guidelines. Medical necessity reviews form part of this stage.	A decision is made whether to pay or not to pay
Claim closure	The insurer pays in full, pays partly, or denies the claim	Completes the claim cycle

What is a medical necessity review?

A medical necessity review is a key part of the claims adjudication stage and evaluates whether a service, treatment, test, or hospital stay is appropriate for the patient’s condition. The review aims to determine whether the service rendered was consistent with the diagnosis, the symptoms, and the accepted standard of care for that case. Getting this answer right serves two key goals:

It protects the insurer from paying for services that do not fit the case.
It helps direct care toward services that match clinical need.

Medical necessity reviews can happen at different points in the care cycle. These are:

Preauthorization review: This review happens before treatment. The insurer checks whether the requested service fits the patient’s diagnosis and the payer’s medical criteria before care begins.
Concurrent review: This review takes place during treatment. The reviewer checks whether the length of stay, level of care, or ongoing services still fit the patient’s condition.
Post-service review: This review happens after treatment. The team reviews records and billed services to determine whether the claim qualifies for payment.

Role of medical necessity reviews in healthcare claims management

Medical necessity reviews contribute to precision in managing healthcare claims. Without this step, health claims could pass basic checks, but services that do not fit the diagnosis or the recommended care required might still be included. Here’s how medical necessity reviews improve healthcare claims management:

They reduce denials that stem from a missing medical basis: When teams review clinical need early, they catch gaps before the claim reaches the final stage.
They limit overbilling and excessive service use: The reviewer checks whether the level of care, length of stay, and billed services fit the diagnosis and patient chart.
They raise consistency across claim teams: A standard review method leads teams toward similar decisions for similar cases.
They reduce the risk of fraud: Reviewers can spot patterns such as repeated services, inflated care intensity, or billing that lacks a medical basis.
They give insurers stronger visibility into healthcare providers’ care patterns: When insurers apply the same medical criteria across files, they can track provider patterns with greater confidence.

Key steps in a medical necessity review

A medical necessity review is a process used by health plans and insurers to determine if a requested service, treatment, or supply is essential to diagnose or treat a medical condition and meets accepted standards of care. Medical necessity reviews follow key steps:

Clinical record review: The reviewer starts with chart notes, diagnosis details, treatment plans, test results, and provider records. This step forms the base for the full review.
Service comparison vs medical basis: The reviewer compares the billed or requested service with the payer’s medical criteria and accepted care standards, using evidence-based criteria developed by the Centers for Medicare & Medicaid Services and/or Interqual/Milliman, at the reviewer’s discretion. The question to answer is: Does this service fit the patient’s condition?
Billing detail check: The team compares diagnosis and procedure codes with the clinical record. A mismatch here can signal a billing error or, occasionally, indicate upcoding (entering more complex and costly services to claim a higher amount).
Service use assessment: This step links closely with utilization review in healthcare. The reviewer checks the length of stay, visit count, test use, and service intensity to see whether the care level matches the specific case. Peer review also forms part of this assessment, in which treatment decisions are evaluated by other qualified medical professionals to determine whether the treatment was appropriate.
Recommendation: The reviewer records the decision for approval, partial payment, request for more records, or denial. The claim then moves to the next stage in adjudication.

Common problems that hurt claim precision

Processing health claims requires managing several moving parts. This complexity often gives rise to operational issues. Here are some of the issues that hurt claim precision, raise costs, and cause delays:

Incomplete clinical records: Missing chart notes, vague diagnosis details, or absent test results can block review. The reviewer then spends extra time chasing records or sends the file back for more information.
Fraud and abuse: Some claims include duplicate charges, services that were never given, or inflated levels of care. These patterns result in direct financial losses when teams miss them.
High claim volume: When claim queues rise rapidly (especially common during natural disasters, weather changes, or pandemics), teams face pressure to move files quickly. However, speed without robust review mechanisms leads to missed details and inconsistent decisions.
Lack of a standard review method: When reviewers use different methods, similar claims can receive very different decisions. That creates inconsistency across the claim book. It can also raise rework, slow down admin processes, and cause customer angst. This issue is magnified when the claims processing team is inadequately experienced, leading to divergent outcomes.

Role of medical claims audit services

Medical claims audit services give insurers a second view of claim quality. While medical necessity reviews focus on clinical basis for treatment, audits examine the claim record, coding, payment path, and review method to find gaps. This gives insurers a way to measure how well their claim process works. Here’s the value that medical claims audit services bring to insurers:

Audit area	What auditors review	Value for the insurer
Coding review	Diagnosis codes, procedure codes, modifiers	Finds billing mistakes and upcoding
Payment review	Paid amount, edits, adjustment logic	Finds instances of overpayment and underpayment
Record review	Chart notes, discharge records, test results	Shows missing or incomplete records
Process review	Review steps, handoffs, and queue age	Finds gaps in daily claim handling
Trend review	Repeat provider issues, repeat denial reasons	Gives a path for corrective action

Benefits of medical necessity reviews

Medical necessity reviews create value across the full health claims cycle. They protect claim funds, shorten rework, and strengthen decision quality at the point of review. Benefits include:

Higher claim precision: Reviewers compare treatment with diagnosis and chart details before payment. That step reduces mismatches between records and services billed.
Lower fraud and abuse risk: Reviewers can spot duplicate services, excess care intensity, and services with a weak medical basis before payment goes out.
Faster claims processing: When teams catch issues early, they avoid long back-and-forth with providers later in the cycle. That expedites the speed at which claims are ultimately processed.
Cost control for insurers: Insurers avoid paying for services that are not required. That keeps claim spending closer to the risk profile that’s already priced in.
Better patient care decisions: A medical necessity review can guide care toward services that align with the patient’s condition. That helps keep treatment focused and clinically sound in the patient’s interest.

Role of technology in better claim decisions

Technology now plays a major part in medical claims processing. Health plans use digital tools to review data more quickly, flag unusual patterns, and guide reviewers to the files that require clinical attention. Here’s how common tools raise the quality of claims:

Tool	What it does	Benefit in claim review
Rules engine	Checks claims against payer edits and policy terms	Flags mismatch early
Automation	Moves routine tasks such as intake and routing	Frees reviewer time for complex files
Data analytics	Spots provider trends and unusual billing patterns	Strengthens fraud review
Clinical decision tools	Match services with medical criteria	Speed up medical necessity review
Dashboards	Track queue age, denial reasons, and claim mix	Give managers a live view of work volume

Best practices for strong medical necessity reviews

Strong review teams build a review method that gives reviewers access to the relevant records, the right medical criteria, and the right tools at the right time. Here are some best practices:

Use standard clinical criteria: Reviewers need one shared set of medical criteria for each service category. That keeps decisions more consistent across teams.
Train review teams often: Clinical review staff, coders, and claims teams need regular training on payer rules, coding changes, and service trends to keep review methods up to date.
Use automation for routine tasks: Automation can route files, flag missing records, and sort claims by risk level. Reviewers then spend more time on the claims that need human review.
Keep records complete: Claims teams should request full chart notes, test results, and treatment details at the outset. Early record quality shortens later delays.
Run audits on a set schedule: A regular audit cycle ensures the review team uses the same method across files. It also reveals repeated problems that need action.

Why choose Techsurance for healthcare claims services

Techsurance provides focused healthcare claims services for insurers seeking stronger claim handling and better control over review quality. Our teams work across medical claims processing, claim review, audit work, and related back-office tasks that deliver faster turnaround times, better efficiency, and cost optimization. Techsurance brings:

Domain expertise: Over 100+ years of collective team expertise delivering excellence across not just healthcare claims but also underwriting and other back-office tasks.
Strong processes: Skilled teams, integrated processes, and certifications such as ISO 27001/9001 underscore a consistent quality of service delivery.
Technology enablement: Automation, output tracking, and quality checks improve TAT, accuracy, and the predictability of health claims processing outcomes.
Process excellence: Rigorous processes, a team trained to follow them in toto, ongoing quality checks, and stringent governance ensure consistent, dependable results.

Conclusion

Medical necessity reviews play a major role in health claims. It brings clinical review into the payment path, reduces billing gaps, cuts fraud risk, and strengthens claim decisions. As claim volume grows and treatment plans become more complex, insurers need stronger review methods, better tools, and trained teams that can manage volume without losing precision. Medical claims audit services and digital tools add even more value when insurers use them with a focused review model.

If your team wants stronger medical claims processing, this is the time to invest in better review systems and to work with a partner such as Techsurance, which provides trained healthcare claims teams and scalable services. Get in touch with our team today, and let’s explore ways in which we can add value to your business.

FAQs

What is medical claims processing?

Medical claims processing is the path a health insurance claim follows from submission to payment or denial. It includes verification, review, adjudication, and final payment action.

What is a medical necessity review?

A medical necessity review determines whether a service or treatment aligns with the patient’s condition and the payer’s medical criteria.

Why do medical necessity reviews play a big role?

Medical necessity reviews help insurers avoid paying for services that lack a clinical basis. They also reduce denials, billing errors, and excess service use.

How do medical necessity reviews raise claim precision?

Medical necessity reviews add a clinical check to the claim process. That extra step helps the payer compare chart details, codes, and services billed before payment.

What is utilization review in healthcare?

Utilization review in healthcare examines service use, length of stay, and care intensity. It checks whether the amount of care fits the patient’s condition.

How do audits improve healthcare claims management?

Audits review coding, payment logic, records, and handling methods across a group of claims. They show repeated issues that need action, which ultimately lead to process improvement.

Why do insurers outsource medical claims processing?

Outsourcing medical claims processing gives insurers trained teams, quality checks, and faster scale during high-volume periods. It also helps reduce handling costs and frees in-house teams to focus on more complex work.