How does billing work when a patient receives services from an out-of-network provider? For starters, the patient must typically submit the reimbursement request using a superbill for insurance. But what is this superbill, and how does it work? Let’s get right to it.
The easiest explanation of a superbill in medical billing is that it is a complete, itemized receipt that a healthcare provider generates, documenting services rendered during the patient’s visit.
The superbill also includes clinical and administrative codes needed for claim reimbursement. It is commonly used as supporting documentation when requesting reimbursement for out-of-network services.
Importance of a Superbill in Medical Billing
A superbill in medical billing is important because it bridges the gap between the clinical encounter and the insurance claim. It includes:
- Provider credentials
- Procedure codes
- Patient information
- Diagnosis codes
- Billed amounts
All of this information is compiled into a single document used to process and adjudicate the reimbursement request.
Contrary to a standard receipt, the superbill also lists coding information, following a standardized system established by the American Medical Association (AMA) and the Centers for Medicare & Medicaid Services (CMS). The benefit is that providers can use superbills to support out-of-network reimbursement requests consistently across various payer situations.
Typically, the superbill can be utilized for cases where:
- A patient using Health Savings Accounts (HSA) or Flexible Spending Accounts (FSA) funds, needing documentation for reimbursement or compliance purposes.
- A patient receiving care from a direct-pay or concierge physician requires documentation to file a claim with a secondary insurer.
- A mental or behavioral health provider not participating in the patient’s insurance network.
- A patient visiting an out-of-network specialist who does not submit claims directly to the insurance payer.
For Billing Operations
In terms of billing, the superbill is a source document through which each billing activity is carried out. The American Health Information Management Association (AHIMA) explains that the superbill lets providers list and capture billable services in a standardized format for reimbursement processing.
For Providers
A superbill greatly benefits and safeguards patient relationships as it is a functional document for reimbursement purposes. Moreover, it is ideal from a quality assurance standpoint for billing teams.
Typically, missing or incorrect CPT or ICD-10 codes on a superbill can lead to claim errors or reimbursement delays.
What Information is Included in a Superbill?
A complete superbill for insurance must include all the elements required for processing an insurance claim. If the patient omits any of this information, the result may be claim denials or delays.
Patient Information
Essential patient information is included in the superbill to aid in billing the claim for reimbursement. The following patient information is included in the superbill:
- Patient’s date of birth
- Patient’s full legal name
- Contact information
- Insurance plan name
- Patient’s insurance ID and group number
Provider Information
The second element for a superbill in medical billing is the provider’s information, which involves the following:
- Full legal name plus practice name.
- Either the provider’s Employer Identification Number (EIN) or Social Security Number (SSN), depending on how the practice is structured.
- The National Provider Identifier (NPI) – a 10-digit identification number issued to covered healthcare providers by CMS.
- Contact information and address of the practice.
- Professional license number details, if required by the payer.
Place and Date of Service
The place and date of service have a direct impact on the reimbursement and are a crucial element of the superbill; therefore, it must include:
- Date(s) when patient care was provided.
- A CMS code (comprising two digits) for place of service, used to identify the care setting (for instance, 22 for outpatient hospital, 11 for office). According to CMS guidance, professional claims must always include place of service codes.
Payment Information
The superbill for insurance must also include service-related payment information. The payment section typically includes:
- Amounts a patient has already paid out of pocket, e.g., a copayment or a full payment
- Signature of the provider with date
- Charge details of each CPT code billed
Diagnosis Codes (ICD-10-CM)
ICD-10-CM identifies and represents a patient’s clinical condition on the superbill. ICD-10-CM is the diagnosis coding system used in the United States. The CMS and Centers for Disease Control and Prevention (CDC) update and maintain it annually, ensuring it covers all essential guidelines.
Additionally, according to CMS’s official coding guidelines, the diagnoses must be coded to the highest specificity level with the current and valid ICD-10-CM code sets.
Example of a Superbill
Understanding a completed superbill in medical billing for a single outpatient visit is necessary to submit it properly. According to AHIMA’s sample ICD-10-converted superbill, a superbill should include the following:
| Field of Superbill | Example Entry |
|---|---|
| Signature of provider | Dr. James Smith, MD |
| Name of provider | Dr. James Smith, MD |
| Address of relevant practice | 123 Medical Drive, Florida, 32003 |
| Place of service | 11 (Office) |
| Patient’s name | Francis A. White |
| NPI | 1234567890 |
| Tax ID (EIN) | 12-3456789 |
| Patient’s insurance plan | BlueCross BlueShield PPO |
| Insurance ID / Group # | XYZ123456 / 78910 |
| ICD-10-CM code | M54.50 – Low back pain, unspecified |
| Service Date | 04/22/2025 |
| Date of Birth | 01/15/1975 |
| CPT Code applicable | 99213 – E/M Office Visit, Established Patient, Low Complexity |
| Example Billing amount | $182.00 |
| Amount Collected from the patient | $40.00 (copayment) |
How to Create & Submit a Superbill for Insurance?
Typically, an electronic health record (EHR) or practice management system generates superbills using clinical documentation from the encounter. But how does this work?
When a visit ends, the provider adds an accurate diagnosis and procedure code to the superbill. Next, the system fills in the superbill with all the necessary provider and patient fields that we have discussed above.
In practices without a dedicated EHR system, the superbills are used like paper encounter forms. Typically, paper encounter forms include pre-printed procedures and diagnosis code lists applicable to common visits.
How Do Patients Submit a Superbill for Insurance?
Once a patient has a complete superbill from the provider, it can be submitted to the relevant insurer to initiate the billing process.
- The first step is for the patient to contact the insurance payer and confirm the submission address or portal for the out-of-network claim. Next, the patient should ask about any required claim forms that must accompany the superbill.
- Once a patient has filled the insurer’s claim form (if required), he must attach the superbill. The superbill is typically attached as the itemized supporting document for the claim.
- The claim should be mailed or submitted electronically using the payer/plan’s instructions. However, patients should keep copies of all submitted documents.
- After submission, patients should follow up (in case the Explanation of Benefits – EOB does not reach them within the plan’s published processing timeframe).
Master Superbill Accuracy with NeuraBill
A superbill for insurance is a highly effective tool for accurate billing, but only when done right. The superbill won’t be accepted if it includes:
- Outdated ICD-10-CM codes
- Inaccurate NPI or TIN
- Incorrect place of service
Avoiding superbill errors is crucial, and the right partner can help you achieve this goal. Find out more about NeuraBill’s medical billing and coding services to ensure that every patient encounter is coded accurately, so your practice focuses on care.
Frequently Asked Questions
Does Anthem accept superbills?
Anthem Blue Cross Blue Shield PPO generally accepts a superbill for insurance payments. However, superbills submitted to Anthem should include details like the provider’s NPI, ICD-10-CM diagnosis codes, CPT codes, and itemized charges.
Members can find Anthem’s out-of-network claims submission address on the back of their insurance card or through the member portal.
Does Kaiser Permanente accept superbills?
Kaiser Permanente generally operates as a closed HMO network, and reimbursement using a superbill may only be available under limited out-of-network circumstances, such as emergencies.
Therefore, members should review the plan’s benefits to avoid clashes in the case of employer-sponsored Kaiser plans or limited out-of-network provisions.
Will Medicare accept a superbill?
Beneficiaries may submit claims themselves using form CMS-1490S in limited situations, such as when a Medicare-enrolled provider does not file the claim CMS-1490S.
Additionally, if a Medicare-enrolled provider refuses to submit a claim, the beneficiary can call 1-800-MEDICARE to file a complaint.
What is the difference between a superbill and CMS 1500?
A superbill and the CMS-1500 form serve different purposes. A superbill in medical billing is a provider-issued receipt that patients can submit for their own out-of-network reimbursement claim.
Conversely, CMS-1500 is the standardized paper claim form submitted directly by the provider or billing team to the payer.
However, both the CMS-1500 form and a superbill for insurance require CPT and ICD-10-CM codes, but each follows a different billing workflow and submission process.
What is another name for a superbill in medical billing?
A superbill in medical billing may also be referred to as an encounter form or a charge ticket. For practice management, it may also be mentioned as a routing slip.
