MHMental HealthMedical Billers
Blog

How Does Mental Health Medical Billing Work?

September 26, 2026 · 3 min read

How Does Mental Health Medical Billing Work?

Mental health medical billing is a series of connected steps that begins before the patient receives care and continues until the claim is resolved.

The exact workflow differs between practices, providers and payers, but the overall process generally includes:

Credentialing → Eligibility → Authorization → Service → Claim → Adjudication → Payment → A/R Follow-Up

Understanding this process helps providers identify where billing problems occur.

Step 1: Provider Credentialing

Credentialing establishes a provider's participation with an insurance plan.

Depending on the payer, this can involve enrollment applications, CAQH information, licenses, certifications, practice locations and other documentation.

CAQH describes its Provider Data Portal as a centralized way for providers to maintain information that can be shared with participating health plans.

A credentialing problem can affect the billing process before the first claim is ever submitted.

Step 2: Patient Insurance Verification

The practice verifies the patient's insurance coverage.

The billing team may review:

  • Eligibility
  • Benefits
  • Network participation
  • Copay
  • Deductible
  • Coinsurance
  • Authorization requirements

This information helps the practice understand potential coverage issues before services are rendered.

However, eligibility verification does not guarantee payment.

Step 3: Authorization

Some plans require authorization for particular services.

Authorization requirements vary by payer, plan, service and patient circumstances.

The practice should determine whether authorization is required before providing the applicable service whenever possible.

Step 4: The Patient Receives the Service

The provider performs the service and documents it according to applicable clinical, payer and professional requirements.

The billing information should accurately reflect the service actually provided.

Step 5: Claim Creation

The billing team enters the applicable:

  • Patient information
  • Provider information
  • Date of service
  • Diagnosis information
  • Procedure code
  • Modifiers when applicable
  • Place of service
  • Payer information

The claim is then prepared for submission.

Step 6: Claim Submission

The claim is submitted to the payer, often electronically through a clearinghouse.

A claim can encounter a problem even before it reaches adjudication.

For example, it might be rejected because of missing or invalid claim information.

Rejected claims should be identified and corrected promptly.

Step 7: Insurance Adjudication

The payer processes the claim according to the patient's plan and applicable policies.

The claim may be:

  • Paid
  • Partially paid
  • Denied
  • Pended
  • Returned for additional information

Step 8: Payment Posting

Once payment information is received, it is posted to the appropriate patient and claim account.

This helps the practice determine:

  • Amount paid
  • Contractual adjustment
  • Patient responsibility
  • Remaining insurance balance
  • Remaining A/R

Step 9: Denial Management

A denial needs investigation.

For example, the reason could involve:

  • Eligibility
  • Authorization
  • Provider enrollment
  • Coding
  • Filing deadline
  • Documentation
  • Medical necessity
  • Payer-specific requirements

The correct response depends on the denial reason.

Step 10: A/R Follow-Up

Claims that remain unpaid become part of accounts receivable.

The billing team should monitor aging and prioritize appropriate follow-up.

A Better Way to Think About Billing

Mental health billing isn't one task.

It is a chain.

If the beginning of the chain is weak, problems can appear later.

For example:

Credentialing problem → Claim problem → Denial → Aging A/R → Delayed payment

That's why an effective billing operation needs to look at the entire revenue cycle.

[Learn About Mental Health Revenue Cycle Management →]

Keep reading

What Is Mental Health Medical Billing? A Complete Guide for Providers

September 27, 2026 · 4 min read

How Much Does Mental Health Billing Cost?

September 25, 2026 · 3 min read

In-House vs. Outsourced Mental Health Billing

September 24, 2026 · 3 min read

How to Choose a Mental Health Billing Company

September 23, 2026 · 4 min read

10 Common Mental Health Billing Problems and How to Address Them

September 22, 2026 · 3 min read

What Is Revenue Cycle Management in Mental Health?

September 21, 2026 · 3 min read

Mental Health Denial Management: A Practical Guide

September 20, 2026 · 3 min read

Mental Health Provider Credentialing: A Complete Guide

September 19, 2026 · 3 min read

CAQH for Mental Health Providers: A Step-by-Step Guide

September 18, 2026 · 3 min read

90837 Billing Guide: Psychotherapy, 60 Minutes

September 17, 2026 · 3 min read

90834 Billing Guide: Psychotherapy, 45 Minutes

September 16, 2026 · 3 min read

90791 Billing Guide: Psychiatric Diagnostic Evaluation

September 15, 2026 · 3 min read

90792 Billing Guide: Psychiatric Diagnostic Evaluation With Medical Services

September 14, 2026 · 3 min read

90833, 90836 and 90838 Billing Guide: Psychotherapy With E/M

September 13, 2026 · 3 min read

90846 & 90847 Billing Guide

September 12, 2026 · 3 min read

96127 Billing Guide — Brief Emotional/Behavioral Assessment

September 11, 2026 · 3 min read

Mental Health Telehealth Billing Guide — POS 02, POS 10 & Modifiers

September 10, 2026 · 3 min read

90839 & 90840 Billing Guide — Psychotherapy for Crisis

September 9, 2026 · 3 min read

Mental Health Billing Codes: A Practical Guide for Providers

September 8, 2026 · 3 min read

Why mental health claims get denied — and how to prevent it

September 28, 2026 · 6 min read

Telehealth billing for mental health: modifiers, place-of-service, and payer rules

September 21, 2026 · 6 min read

Time-based psychotherapy codes explained: 90832, 90834, and 90837

September 14, 2026 · 6 min read

Insurance credentialing for mental health providers: what to expect and how long it takes

September 7, 2026 · 6 min read

Blue Cross Blue Shield Mental Health Billing Services

September 6, 2026 · 3 min read

Cigna Mental Health Billing Services

September 5, 2026 · 3 min read

Aetna Mental Health Billing Services

September 4, 2026 · 3 min read

Optum Behavioral Health Billing Services

September 3, 2026 · 3 min read

UnitedHealthcare Mental Health Billing Services

September 2, 2026 · 4 min read

PMHNP Medical Billing Services

September 1, 2026 · 3 min read

Therapist Medical Billing Services

August 31, 2026 · 3 min read

Psychiatry Medical Billing Services

August 30, 2026 · 3 min read

Medicare Mental Health Billing Services

August 29, 2026 · 3 min read

Medicaid Mental Health Billing Services

August 28, 2026 · 3 min read

Want billing handled like this?

Tell us about your practice and we'll confirm your rate and send a written quote within one business day — no hidden fees, no monthly minimums.

Free billing reviewGet a quote