
Medical codes are used by healthcare providers to describe the services they provide to patients. These codes are used by insurance companies to process claims from healthcare providers and pay for health services. While insurance companies do not have access to a patient's full medical history, they can access specific medical information to determine coverage eligibility and authorize payments for medical services. It is important for patients to understand these codes to confirm that no mistakes were made in the billing process.
| Characteristics | Values |
|---|---|
| Do insurance companies have access to medical codes? | Yes, insurance companies have access to medical codes. These codes are used to determine eligibility, assess claims, and decide on coverage and payment amounts. |
| What are medical codes? | Medical codes are a standardized way for healthcare professionals to describe medical diagnoses, treatments, and procedures. |
| Who develops and maintains medical codes? | The American Medical Association (AMA) develops and maintains the Current Procedural Terminology (CPT) codes, which are the most widely accepted medical codes in the US. The CPT Editorial Panel, supported by CPT Advisors, reviews and updates the CPT codes regularly. |
| Are there different types of medical codes? | Yes, there are different types of medical codes, including CPT codes, HCPCS codes, ICD codes, NDC codes, and more specific codes for fields like dentistry and psychiatry. |
| How do insurance companies use medical codes? | Insurance companies use medical codes to process and pay claims from healthcare providers, determine coverage and payment amounts, and assess eligibility during the application process. |
| Can insurance companies access medical records? | Insurance companies can access some parts of medical records with the individual's authorization, especially when filing a claim or applying for coverage. They typically cannot access the entire medical history but can request specific records directly related to the injury or condition. |
| How is medical information protected? | The Health Insurance Portability and Accountability Act (HIPAA) safeguards protected health information. Individuals can also take steps to protect their information, such as carefully reviewing forms, being cautious with health-tracking apps, and requesting copies of their medical records. |
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What You'll Learn
- Medical codes are used by health plans to make decisions about prior authorization requests and claims
- Insurance companies can access medical records to assess claims and determine coverage
- The Medical Information Bureau (MIB) is a database used by insurance companies to access medical record information
- CPT codes are used by healthcare providers to describe the services they provide
- The Healthcare Common Procedure Coding System (HCPCS) is used to describe things not covered by CPT codes

Medical codes are used by health plans to make decisions about prior authorization requests and claims
Medical codes are essential for health insurance companies to process claims from healthcare providers and pay for health services. These codes are used by health plans to make decisions about prior authorization requests and claims. They also determine how much to pay healthcare providers.
There are three main coding systems used by health plans, medical billing companies, and healthcare providers: Current Procedural Terminology (CPT), International Classification of Diseases (ICD), and Healthcare Common Procedure Coding System (HCPCS). CPT codes are used by healthcare providers to describe the services they provide. CPT codes are developed and updated by the American Medical Association (AMA), which issues an annual update to the CPT codes. For example, the update for 2024 included 230 new codes, 49 deleted codes, and 70 revised codes. CPT codes are also used for administrative management purposes such as claims processing and developing guidelines for medical care review.
ICD codes describe the cause of an injury or illness, while HCPCS codes are used to describe things not covered by CPT codes, such as durable medical equipment, ambulance services, or certain medicines. HCPCS is divided into two main subsystems: Level I, which includes CPT codes, and Level II, which covers items such as quarterly drug and biological product applications and biannual non-drug and non-biological items and services applications.
It is important for individuals to understand these codes as they appear on Explanation of Benefits (EOB) forms and medical bills. Reviewing the codes can help identify any mistakes in the billing process, potentially saving money depending on the health coverage. Coding errors can result in incorrect reimbursement amounts, increased out-of-pocket expenses, or claim denials.
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Insurance companies can access medical records to assess claims and determine coverage
Insurance companies can access medical records, but only to process claims and determine coverage. They do not have access to full medical records and can only request specific information directly related to the injury or condition. This includes treatment histories, diagnostic tests, and medication lists.
In the United States, the Health Insurance Portability and Accountability Act (HIPAA) safeguards an individual's protected health information. Insurance companies can only access medical records with the individual's authorization. When filing a claim, the individual will be asked to sign a HIPAA authorization form, which allows the insurance company to contact the individual's healthcare provider and request specific medical records. The insurance company can then use this information to assess the validity and severity of the claim.
Insurance companies also use medical codes to determine coverage and process claims. These codes are used by healthcare providers to describe medical diagnoses and treatments. The codes allow insurance companies to review whether the services were necessary and to decide how much to pay the healthcare provider.
It is important to note that individuals have the right to know what information is being shared and to dispute any inaccuracies in their medical records. While insurance companies require medical information to process claims and determine coverage, they do not have unrestricted access to an individual's full medical history.
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The Medical Information Bureau (MIB) is a database used by insurance companies to access medical record information
The MIB database does not contain detailed reports about any medical exam, lab tests, x-rays, or any other specific personal information. Instead, it keeps track via codes that refer to broad categories of any medical condition. Insurance companies use these codes to determine if they need further information about an applicant before insuring them. For example, if you are diabetic, it will have a code for that in its database.
You can request a copy of your MIB report to see the same information insurance companies see. Your doctor cannot send information about you to the MIB without your written authorization. The MIB does not store your actual medical records, such as lab results or prescriptions. Instead, members send codes to the MIB, and each code stands for a broad category of medical information that is important for insurance underwriting.
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CPT codes are used by healthcare providers to describe the services they provide
Current Procedural Terminology (CPT) codes are a uniform coding system consisting of descriptive terms and identifying codes. CPT codes are used by healthcare providers to describe the services they provide and the procedures they carry out. CPT codes are also used for administrative management purposes such as claims processing and developing guidelines for medical care review. They are the most widely accepted medical nomenclature used across the country to report medical, surgical, radiology, laboratory, anesthesiology, genomic sequencing, evaluation and management (E/M) services under public and private health insurance programs.
The CPT code set is constantly updated by the CPT Editorial Panel with insight from clinical and industry experts to reflect current clinical practice and the latest innovations to help improve the delivery of care. The CPT Editorial Panel is an independent group of expert volunteers representing various sectors of the healthcare industry. Their role is to ensure that code changes undergo evidence-based review and meet specific criteria. The CPT code set stands primed and ready to grow and change with input from stakeholders across the healthcare landscape.
CPT codes are developed and updated by the American Medical Association (AMA), which issues an annual update to the CPT codes. CPT codes are used by healthcare providers to submit claims to health plans to request payment. They use CPT codes to show the health plans the services they gave to patients. Health plans use the codes to review whether the services were needed and to decide how much to pay the healthcare providers for their work. CPT codes are also used to understand medical bills and to avoid problems that can occur if something is coded incorrectly.
Insurance companies have access to some parts of medical records, but only those necessary for payment processing and eligibility. They use codes to determine whether they need further information about an applicant before insuring them. These codes refer to broad categories of any medical condition and are not extensive, nor do they contain detailed reports about any medical exam, lab tests, x-rays, or any other specific personal information.
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The Healthcare Common Procedure Coding System (HCPCS) is used to describe things not covered by CPT codes
The Healthcare Common Procedure Coding System (HCPCS) is a set of health care procedure codes that are used to describe things not covered by CPT codes. HCPCS codes are used to identify products, supplies, and services that are not included in the CPT codes. CPT, or Current Procedural Terminology, codes are a set of codes maintained by the American Medical Association (AMA) to describe medical, surgical, and diagnostic services.
The HCPCS Level II codes, also known as alphanumeric codes, consist of a single alphabetical letter followed by four numeric digits. These codes are used to identify items such as ambulance services, durable medical equipment, prosthetics, orthotics, and supplies (DMEPOS) when used outside a physician's office. HCPCS Level I codes, on the other hand, are identical to CPT codes and are used for coding services and procedures.
The HCPCS was established by the Centers for Medicare and Medicaid Services (CMS) in 1983 and mandated for use in reporting all services billed to Medicare. It was adopted by Medicaid in 1986. The HCPCS Level II codes were established so that providers and suppliers could submit claims for items not covered by CPT codes. CMS maintains the HCPCS Level II codes, including decisions about additions, revisions, and deletions.
The HCPCS is based on the AMA's CPT coding system but has a second level that differs. While CPT codes are used to describe medical procedures and services, HCPCS Level II codes are used to identify specific products, supplies, and services associated with those procedures. For example, an ambulance ride to a hospital would be coded using an HCPCS Level II code, while the medical services provided during the ride would be coded using CPT codes.
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Frequently asked questions
Medical codes are used by healthcare professionals to describe medical diagnoses and treatments. These codes are important for understanding how medical billing works and can affect what you pay and what is covered under your health insurance.
CPT stands for Current Procedural Terminology. CPT codes are used by healthcare providers to describe the services they provide. CPT codes are developed and updated by the American Medical Association (AMA). CPT codes are either numeric or alphanumeric, depending on the category.
Insurance companies use medical codes to make decisions about prior authorization requests and







































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