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The Art of Medical Coding: Understanding and Applying CPT Modifier 96138

Navigating the world of medical coding can feel like traversing a labyrinth of numbers and codes, especially for those new to the field. It's a crucial task that directly influences healthcare provider reimbursements. Mastering medical coding involves delving into a comprehensive understanding of the CPT® codes (Current Procedural Terminology) that represent various medical services, alongside the accompanying modifiers, which offer further context to those codes. The purpose of modifiers is to add detail to the narrative behind the services provided. Today, we will embark on a journey to shed light on one specific CPT® code, 96138 (Psychological or neuropsychological test administration and scoring by technician, two or more tests, any method; first 30 minutes), and how the associated modifiers help paint a clear picture of the service delivered. But before we embark on our exploration, we need to clarify a critical point.

It is vital to acknowledge that CPT codes, including CPT code 96138 and any related modifiers, are proprietary intellectual property owned and distributed by the American Medical Association (AMA). The legal and financial repercussions of using unauthorized or outdated CPT codes can be severe. As such, using this information for billing purposes without purchasing a license from the AMA could result in substantial fines and legal trouble. Using current CPT code data from the AMA's authorized sources is paramount. Therefore, for accurate and lawful medical coding, adhering to the guidelines provided by the AMA's official publications is a non-negotiable requirement.

A Tale of Two Scenarios with CPT® Code 96138

Let’s imagine ourselves working at a bustling neuropsychological practice. The first patient we encounter is Ms. Jane Doe. A kind woman, Jane has been experiencing memory issues and has been referred for neuropsychological testing. Let's look at how a neuropsychologist might use code 96138 to accurately bill for the services provided.

Scenario 1: Ms. Doe's Cognitive Evaluation

As her medical coder, our job is to capture the essence of Ms. Doe's journey with the utmost precision. Let's assume that during her first visit, she undergoes several tests administered by a technician. The tests are intended to assess her memory, attention, and cognitive function. Question: Do we use CPT® code 96138 for these tests? Answer: Absolutely! This scenario perfectly fits the description of 96138: it refers to psychological or neuropsychological test administration and scoring by a technician for two or more tests. The only thing missing is how much time the test administration took. In Ms. Doe's case, the technician dedicated 35 minutes to the administration and scoring of the tests. Question: How do we account for the fact that the tests lasted beyond the first 30 minutes? Answer: Here's where modifiers come into play! We will use CPT® modifier 96139 to represent each additional 30 minutes beyond the initial 30 minutes of testing, since the code 96138 already covers the first 30 minutes of test administration. This scenario indicates that we will need to use two modifiers: code 96138, code 96139. The initial 30 minutes are covered by 96138 and the remaining 5 minutes of testing, which are greater than 30 minutes, are covered by code 96139, but only for 5 minutes, so only one unit of 96139. It is crucial to check AMA's CPT® manual for current guidelines.

Scenario 2: More Detailed Cognitive Testing

Now let's switch gears. We have Mr. John Doe, who arrives at the practice with a different set of concerns, struggling with anxiety and difficulty focusing. His neuropsychologist determines that HE would benefit from additional, more detailed testing. This time, the testing is expected to last at least 90 minutes. We need to capture the length of service, not just use code 96138 to describe a 30-minute time frame, since that would only be a part of the testing time. Question: Do we simply use the same code (96138) for the full duration of the testing, regardless of its length? Answer: Absolutely not! This is where modifiers shine brightly. The AMA's coding guidelines specifically require modifiers to precisely clarify and expand upon CPT® codes. To accurately capture Mr. Doe's scenario, we utilize a different CPT® code, 96138, to account for the time it took to complete the test. Since the entire test was completed in under an hour, only one unit of the code is used.

Key Considerations for Medical Coding

Using CPT® modifiers to fine-tune coding is crucial in accurately capturing a wide range of procedures, services, and diagnoses in medical coding. Here are key factors to keep in mind when employing these modifiers in your practice:

Modifier 59: Distinct Procedural Service - If a coder needs to communicate to the insurance company that a service performed is a distinct procedure from other services, it is necessary to use modifier 59. For instance, if the patient was undergoing an unrelated procedure and there were more than one technician administering the psychological test, it would require the use of Modifier 59. Modifier 59 would indicate that there are two distinct services occurring.
Modifier 76: Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional - If the tests being performed by the technician were the same, for example, same test as the day before, the medical coder would need to use this modifier. It means the tests were done by the same person, but at another point in time.
Modifier 77: Repeat Procedure by Another Physician or Other Qualified Health Care Professional - If a physician is treating a patient and the tests were done by the technician, but another technician, the medical coder would use Modifier 77. It means that a new technician performed the tests on the same patient, but in a separate appointment or setting.
Modifier 79: Unrelated Procedure or Service by the Same Physician or Other Qualified Health Care Professional During the Postoperative Period - This modifier would be used if the psychological tests being performed by the technician were unrelated to any other procedures done, but performed on the same patient at the same setting. Modifier 79 can also be used when a patient has a procedure done, in this case, the testing, and the tests are done during the postoperative period.
Modifier 80: Assistant Surgeon - This modifier is used when another person, other than the primary surgeon or provider is assisting during the surgery. In the case of a patient undergoing cognitive testing, Modifier 80 could be used if the doctor is providing direction, instruction, or advice, to the technician in a "supervising" capacity, even if not physically performing the procedures.
Modifier 81: Minimum Assistant Surgeon - This modifier is typically used in cases where another doctor, a surgeon, is present and assisting during the main surgery, such as the cognitive test. Modifier 81 might apply in a case when a provider is helping out, for example, with explaining instructions for the patient, or with administering or documenting testing results, but without fully participating in the procedures as the primary technician.
Modifier 82: Assistant Surgeon (when qualified resident surgeon not available) - Modifier 82 would only apply in cases when a resident is supervising the patient care but due to the resident's training level or the complexity of the cognitive tests being performed, another more experienced medical professional must be called upon for support or direction.
Modifier 93: Synchronous Telemedicine Service Rendered Via Telephone or Other Real-Time Interactive Audio-Only Telecommunications System - In the modern era of telehealth, Modifier 93 comes into play when cognitive tests are performed through audio-only telemedicine services. The test must be performed by the technician who is providing care over an interactive telephone system and involves immediate communication with the patient.
Modifier 95: Synchronous Telemedicine Service Rendered Via a Real-Time Interactive Audio and Video Telecommunications System - This modifier applies in cases where the technician is delivering care via video telecommunications services, enabling the technician to assess the patient using visual means, like a web cam, in addition to verbal communication, like an interactive audio connection.
Modifier 99: Multiple Modifiers - The medical coder would utilize this modifier when more than one modifier is necessary to precisely explain the circumstance and nature of the service that was performed. For example, this modifier could be used when a service is performed by two or more technicians in separate facilities.
Modifier AF: Specialty physician - This modifier applies when the physician performing the cognitive testing, is a specialist in psychology or neuropsychology, for example, an individual whose work involves understanding and analyzing complex mental processes and brain activity. Modifier AF might be used when the neuropsychological evaluation involves complex analyses, which requires the special skills of a specialist in psychology.
Modifier AH: Clinical psychologist - When a clinical psychologist, with special training in assessing mental health, is administering the psychological tests, Modifier AH can be used to reflect that the professional conducting the tests is indeed a clinical psychologist, specialized in diagnosis and treatment of mental health disorders, and that their work will be interpreted by them.
Modifier AQ: Physician providing a service in an unlisted health professional shortage area (hpsa) - Modifier AQ helps denote the circumstances under which the service was performed by a physician and whether it involved an unlisted health professional shortage area. The "hpsa" could denote that certain health professional specialties, like mental health, have a shortage of providers. If the clinical psychologist conducting the test was practicing in an hpsa region, it may be necessary to use modifier AQ.
Modifier AR: Physician provider services in a physician scarcity area - Modifier AR could apply when the service is performed in a geographical area facing a shortage of doctors. This modifier helps convey this specific location-related detail in situations where physician resources are scarce, such as a rural setting.
1AS: Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery - When the services are performed by someone who assists in surgery but is not the primary surgeon, this modifier can be used. In our scenario, 1AS would be applied if the cognitive test was being conducted by a clinical nurse specialist who is trained to monitor the test but does not perform complex psychological analyses.
Modifier CR: Catastrophe/disaster related - This modifier helps distinguish that the service being coded is connected to a situation that qualifies as a "catastrophe or disaster", such as a natural disaster, or a large-scale accident, which might be associated with the psychological tests, for example. This modifier is often used to provide financial support to those who need medical attention after a disaster, enabling better accessibility of care.
Modifier FQ: The service was furnished using audio-only communication technology - Modifier FQ would be used to indicate the method of delivery of the cognitive tests was done through audio-only technologies, for instance, via telephone conversations.
Modifier G0: Telehealth Services For Diagnosis, Evaluation, Or Treatment, Of Symptoms Of An Acute Stroke - Modifier G0 indicates that the cognitive test is delivered using telehealth services for an individual experiencing the symptoms of a stroke.
Modifier GA: Waiver of liability statement issued as required by payer policy, individual case - This modifier would be used in the scenario when the insurance company required the patient to sign a statement waiving any liabilities that might arise from the procedure performed, such as a psychological test.
Modifier GC: This service has been performed in part by a resident under the direction of a teaching physician - This modifier is relevant when a resident is being supervised while conducting a portion of the psychological testing. The medical coder would use Modifier GC in this instance, when the test was partially conducted by a resident under the guidance of a supervising doctor.
Modifier GJ: “opt out” physician or practitioner emergency or urgent service - In the case that a patient sought emergency or urgent cognitive testing and a physician opted out of using the "opt out" policy of not accepting the patient's insurance or coverage, this modifier would be used to document the procedure.
Modifier GQ: Via asynchronous telecommunications system - This modifier applies when the cognitive tests were done through telehealth services, using an asynchronous communication system. Modifier GQ would indicate that the communication and the delivery of care occurred not in real time, for instance, in scenarios such as patient answering questionnaires via online portals, without direct, immediate contact from the technician.
Modifier GR: This service was performed in whole or in part by a resident in a department of veterans affairs medical center or clinic, supervised in accordance with va policy - Modifier GR is specifically used for services performed by a resident doctor at a Veterans Affairs facility, where the testing was overseen according to Veterans Affairs policies and procedures.
Modifier GT: Via interactive audio and video telecommunication systems - When the cognitive test was conducted using telehealth technologies involving both audio and video, Modifier GT comes into play, marking a difference from the earlier modifier, GQ, which involves only the audio component, for instance, a video conference with a technician.
Modifier HA: Child/adolescent program - If the patient receiving psychological tests is a child or an adolescent, this modifier is used to reflect that they are enrolled in a specific child or adolescent program.
Modifier HB: Adult program, non geriatric - This modifier denotes that the patient undergoing psychological testing is part of an adult program designed for non-geriatric individuals.
Modifier HC: Adult program, geriatric - Modifier HC signifies that the service involved an individual enrolled in an adult program tailored for geriatric patients.
Modifier HE: Mental health program - If the service falls under a mental health program, Modifier HE is used. This might be appropriate when the tests were administered for a specific diagnosis or treatment for a mental health issue.
Modifier HH: Integrated mental health/substance abuse program - This modifier applies when a patient receiving psychological tests is part of a program encompassing both mental health services and substance abuse care.
Modifier HI: Integrated mental health and intellectual disability/developmental disabilities program - Modifier HI indicates that the patient is part of an integrated program encompassing both mental health services and services for intellectual disabilities or developmental disabilities, for example, receiving assessments or services related to both types of concerns.
Modifier HK: Specialized mental health programs for high-risk populations - This modifier applies in cases where the services were delivered within a specialized mental health program for high-risk patient populations.
Modifier HW: Funded by state mental health agency - When the service is part of a program funded by a state's mental health agency, this modifier is used. Modifier HW helps illustrate the source of funding for mental health care.
Modifier PD: Diagnostic or related non diagnostic item or service provided in a wholly owned or operated entity to a patient who is admitted as an inpatient within 3 days - In instances when the patient is undergoing an inpatient procedure within three days and there is an item or service involved, Modifier PD would be used to represent it. It might apply to a patient who had a diagnosis procedure and was then admitted to the hospital.
Modifier Q5: Service furnished under a reciprocal billing arrangement by a substitute physician; or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area - Modifier Q5 indicates that the services provided by the physician or physical therapist, were rendered under an agreement for payment. This might apply in scenarios where the physician or physical therapist was part of a cooperative arrangement with the patient's insurance.
Modifier Q6: Service furnished under a fee-for-time compensation arrangement by a substitute physician; or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area - This modifier is used to clarify that the service performed is compensated for based on a time basis and is usually applicable in settings that have agreements regarding pay for specific services.
Modifier QJ: Services/items provided to a prisoner or patient in state or local custody, however the state or local government, as applicable, meets the requirements in 42 cfr 411.4 (b) - Modifier QJ indicates that the service, such as the psychological testing, was done for a patient or prisoner who is in the custody of either the state or local government, and it has been documented that the payment procedures followed all the rules.
Modifier SC: Medically necessary service or supply - This modifier denotes that the service performed by the technician was medically needed and a justifiable part of the patient's medical care. It is often used in cases where there are doubts about the necessity of the tests.
Modifier XE: Separate encounter, a service that is distinct because it occurred during a separate encounter - Modifier XE is used to differentiate the procedures or services when they were conducted during a different encounter with the technician, for instance, if a test occurred separately, during a second or a later appointment.
Modifier XP: Separate practitioner, a service that is distinct because it was performed by a different practitioner - This modifier signifies that a service was rendered by a new technician who was distinct from the primary one providing the service. For example, if there were different technicians involved in performing the cognitive tests on the same day, for the same patient, but within separate encounters or time blocks, the modifier would be used.
Modifier XS: Separate structure, a service that is distinct because it was performed on a separate organ/structure - When the services involve distinct areas of the body, for instance, cognitive testing done on both legs and the right arm, the Modifier XS is used.
Modifier XU: Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service - Modifier XU indicates the unusual service performed was different and didn't overlap or intersect with the main service. In the cognitive testing example, it might apply if there were very unusual tests conducted by the technician for the patient that would fall outside the typical testing framework and not considered "usual" practices.

Coding with Confidence

Mastering medical coding, including understanding and utilizing modifiers, plays a crucial role in maintaining accurate billing and receiving proper reimbursement from insurance companies. Always remember that keeping your knowledge of CPT® codes and the associated modifiers current is critical, because those codes and rules can change every year. Using incorrect information can result in a great deal of trouble. Using this information for billing purposes without purchasing a license from the AMA could result in substantial fines and legal trouble. Therefore, it's important to regularly check the official CPT® code publications issued by the AMA and participate in continuing education, to stay up-to-date with the latest code guidelines and modifications, as they affect code 96138 as well as every other code you might use.

Learn how to use CPT Modifier 96138 for accurate medical billing with AI and automation. Understand the importance of modifiers for psychological and neuropsychological testing. Discover how AI helps in medical coding audits and improves claim accuracy with CPT code 96138.

What is CPT Code 96138 and How to Use Modifiers for Accurate Billing?