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    OpenPayerBilling CodesProcedures / Professional ServicesHCPCS hcpcs-g8981-changing-maintaining-body-position-assessment
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    HCPCS G8981: Changing & Maintaining Body Position Functional Limitation

    HCPCS Level II code G8981 documents the assessment of changing and maintaining body position functional limitation by reporting the patient’s current status at the start of a therapy episode and at designated reporting intervals; this represents a functional status assessment typically performed as part of physical or occupational therapy services in outpatient therapy clinics or other therapy settings where standardized functional outcome reporting is required.

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    Clinical & Coding Specifications

    Clinical Context

    A typical patient is a 72-year-old post-stroke adult admitted to an outpatient or home health therapy program for physical therapy to address deficits in mobility and postural control. At the start of the therapy episode the therapist performs a standardized functional assessment focused on the patient’s ability to change and maintain body position (for example, supine-to-sit, sit-to-stand, transfers, standing balance, and sustained standing tolerance). The evaluation documents current status using objective measures (timed sit-to-stand, Berg Balance Scale items, or custom documented functional level) and establishes baseline limitations in changing and maintaining body position.

    Therapy workflow: Initial evaluation by a licensed physical therapist documents impairment, functional limitation, measurable baseline status for the G8981 functional limitation category, and sets goals. The therapist records G8981 at episode outset with the baseline status value and re-assesses at established reporting intervals (for example, every 10 treatment days or at discharge) to report current status and change over time. Documentation includes specific activities tested, assistance level, assistive devices used, objective measures, and plan of care updates. This procedure commonly occurs in outpatient rehabilitation clinics, skilled nursing facilities, home health, and inpatient rehabilitation settings where functional limitation reporting is required.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    97161Physical therapy evaluation: low complexity, typically 20 minutesInitial PT evaluation often performed immediately before documenting functional limitation with G8981.
    97162Physical therapy evaluation: moderate complexity, typically 30 minutesUsed when the evaluation requires moderate complexity testing that informs the G8981 baseline status.
    97110Therapeutic exercises to develop strength and endurance, range of motion and flexibilityCommon treatment performed during the episode after baseline G8981 assessment to improve ability to change and maintain body position.
    97530Therapeutic activities, direct (one-on-one) patient contact, each 15 minutesFunctional task practice (transfers, sit-to-stand) performed in treatment sessions following G8981 assessment.
    97116Gait training (includes stair climbing)Often provided to address impairments identified by the G8981 functional limitation category.
    97112Neuromuscular re-education of movement, balance, coordinationUsed to treat deficits in maintaining body position and postural control identified at the G8981 assessment.

    Related Modifiers

    6 rows

    ModifierDescriptionWhen to Use
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    25CPT modifier 25 indicates that on the same day as another procedure or service, the same physician or other qualified health care professional provided a significant, separately identifiable…- When to apply: Use modifier 25 only on an E/M code to indicate the same provider delivered a significant, separately identifiable E/M service on the same day as another procedure or service — i.e.,…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    76Modifier -76, Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional, is appended when the same provider performs an identical, medically necessary procedure or…- Use modifier -76 when the same physician or other qualified health care professional performs an identical procedure or service a second (or subsequent) time on the same date of service and the…
    77Modifier 77 indicates that a previously performed procedure or service was legitimately repeated by a different physician or other qualified health care professional. The AMA’s CPT definition…- Use modifier 77 when a basic procedure or service already performed is repeated by a different physician or other qualified health care professional (for example, a second provider independently…
    91Modifier 91 — “Repeat Clinical Diagnostic Laboratory Test” — is appended when the exact same CPT laboratory test is performed more than once for the same patient on the same day because serial,…- Use modifier 91 when the exact same CPT laboratory test is performed more than once on the same patient on the same date because serial or repeated testing is medically necessary to monitor…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    225100000XPhysical TherapistPhysical therapists (PTs) are licensed health care professionals who diagnose and treat individuals of all ages, from newborns to the very oldest, who…
    225200000XPhysical Therapy Assistant(1)Physical therapist assistants are skilled health care providers who are graduates of a physical therapist assistant associate degree program accred…
    261Q00000XClinic/CenterA facility or distinct part of one used for the diagnosis and treatment of outpatients. "Clinic/Center" is irregularly defined, sometimes being limite…
    207L00000XAnesthesiology PhysicianAn anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an opera…
    2085R0203XTherapeutic Radiology PhysicianTherapeutic Radiology certificate name was changed to Radiation Oncology. Use Radiation Oncology.
    111NI0013XIndependent Medical Examiner ChiropractorA special evaluator not involved with the medical care of the individual examinee that impartially evaluates the care being provided by other practiti…
    207X00000XOrthopaedic Surgery PhysicianAn orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated…
    208600000XSurgery PhysicianA general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of s…

    Related ICD-10-CM Codes

    23 rows

    ICD-10-CM CodeDescription
    G81.90Hemiplegia, unspecified affecting unspecified side
    G82.20Paraplegia, unspecified
    M17.11Unilateral primary osteoarthritis, right knee
    M17.12Unilateral primary osteoarthritis, left knee
    M21.20Flexion deformity, unspecified site
    M25.50Pain in unspecified joint
    M25.561Pain in right knee
    M25.562Pain in left knee
    M43.16Spondylolisthesis, lumbar region
    M54.16Radiculopathy, lumbar region

    Showing 1–10 of 23

    Related Codes

    HCPCS-G9490-HOME-ASSESSMENT-NON-HOMEBOUND

    HCPCS G9490: Home Visit Patient Assessment for Non-Homebound Beneficiary

    HCPCS-G0008-INFLUENZA-VACCINE-ADMINISTRATION

    HCPCS G0008: Administration of Influenza Virus Vaccine

    HCPCS-G0009-PNEUMOCOCCAL-VACCINE-ADMINISTRATION

    HCPCS G0009: Administration of Pneumococcal Vaccine

    HCPCS-G0010-HEPATITIS-B-VACCINE-ADMINISTRATION

    HCPCS G0010: Administration of Hepatitis B Vaccine

    HCPCS-G0011-PREP-COUNSELING-HIV-RISK-REDUCTION-ADHERENCE

    HCPCS G0011: Individual PrEP Counseling, HIV Risk Assessment

    HCPCS-G0012-PRE-EXPOSURE-PROPHYLAXIS-INJECTION-HIV-PREVENTION

    HCPCS G0012: Injection of PrEP Drug for HIV Prevention

    HCPCS-G0013-PREP-INDIVIDUAL-COUNSELING-HIV-RISK-REDUCTION

    HCPCS G0013: Individual PrEP Counseling by Clinical Staff

    HCPCS-G0017-PSYCHOTHERAPY-CRISIS-FIRST-60-MINUTES-NON-OFFICE

    HCPCS G0017: Psychotherapy for Crisis, First 60 Minutes

    HCPCS-G0018-PSYCHOTHERAPY-CRISIS-ADDITIONAL-30-MINUTES-NON-OFFICE

    HCPCS G0018: Psychotherapy for Crisis, Additional 30 Minutes

    HCPCS-G0019-COMMUNITY-HEALTH-INTEGRATION-SDOH-CARE-COORDINATION

    HCPCS G0019: Community Health Integration, Person-Centered Assessment

    Showing 1–10 of 1996

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    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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