HCPCS G2143: Postoperative Oswestry Disability Index, Limited Improvement - OpenPayer

Summary & Overview

HCPCS G2143: Postoperative Oswestry Disability Index, Limited Improvement

HCPCS Level II code G2143 denotes a documented postoperative outcome using the Oswestry Disability Index (ODI) Version 2.1a: a one-year (9–15 months) ODI score greater than 22 with less than a 30-point improvement from a preoperative baseline measured within three months before surgery. This measure captures patients with persistent functional impairment after spine surgery and is relevant for quality reporting, outcome tracking, and postoperative review nationally. Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will find a concise explanation of the clinical context for G2143, how the service is typically delivered (clinic-based postoperative outcome assessment in orthopedic, neurosurgical, or rehabilitation settings), and why the metric matters for postoperative care and performance evaluation. The publication summarizes common coding relationships, typical sites of service, and the presence or absence of available payer-specific policy details. It also outlines where benchmark and policy updates would be relevant for payers and clinicians tracking functional outcomes, and highlights what information is missing from the input (for example, payer-specific coverage policies and associated ICD-10 mappings).

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareG2143HCPCS Level IIOswestry Disability Indexpostoperative outcomesspine surgerypatient-reported outcomesfunctional statusquality measurementoutcome assessment

Billing Code Overview

HCPCS Level II code G2143 reports a postoperative functional status outcome measured using the Oswestry Disability Index (ODI) Version 2.1a. The code applies when the ODI score at one year (9 to 15 months) postoperatively is greater than 22 and the change from the preoperative ODI (measured within three months before surgery) to the one-year postoperative ODI demonstrates an improvement of less than 30 points.

Service type: Outcome measurement of functional status following surgery using a standardized patient-reported outcome instrument.
Typical site of service: Postoperative follow-up visits or clinic-based outcome assessment within orthopedic, neurosurgical, or rehabilitation settings where the ODI is administered and documented.

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A 58-year-old patient underwent lumbar spine surgery one year ago for degenerative disc disease and persistent radicular pain. The practice schedules routine outcomes assessment at baseline (within three months preoperatively) and at one year postoperatively (9–15 months) using the Oswestry Disability Index (ODI) version 2.1a. At the preoperative visit the patient completed the ODI and scored 56 (severe disability). At the one-year postoperative visit the ODI score is 34, which remains greater than 22 and represents an improvement of less than 30 points from baseline. The clinic documents the ODI instrument administration, scoring, comparison to the preoperative baseline, and a clinical interpretation noting continued functional limitation despite modest improvement.

Workflow steps:

Patient scheduled for routine 12-month follow-up visit.
Medical assistant or clinical staff administers the ODI v2.1a questionnaire, either paper or electronic, and records responses in the medical record.
Provider reviews the raw responses, calculates the total ODI score, compares it to the preoperative ODI completed within three months prior to surgery, and documents the numeric scores and the delta (change in points).
Documentation includes date of the preoperative ODI, date of the one-year ODI (9–15 months post-op), exact scores, and statement that the one-year ODI is >22 and improvement is <30 points.
Billing staff appends the appropriate HCPCS Level II code G2143 for reporting of this specific outcome measure when payer rules require or permit reporting of postoperative functional outcomes that meet the described thresholds.

Coding Specifications

HCPCS G2104: Retinal Imaging Validated to Seven-Field Stereoscopic Photos

HCPCS-G9664-STATIN-THERAPY-USER-OR-PRESCRIPTION

HCPCS G9664: Statin Therapy User or Statin Prescription

HCPCS-G0499-HEPATITIS-B-SCREENING-HIGH-RISK-NON-PREGNANT

HCPCS G0499: Hepatitis B Screening for High-Risk Non-Pregnant Individuals

HCPCS-G9352-MULTIPLE-CT-PARANASAL-SINUSES-REPEAT-WITHIN-90-DAYS

HCPCS G9352: Multiple CTs of Paranasal Sinuses Within 90 Days

HCPCS-G9691-HOSPICE-SERVICES-DURING-MEASUREMENT-PERIOD

HCPCS G9691: Patient Received Hospice Services During Measurement Period

HCPCS-G9056-ONCOLOGY-GUIDELINE-ADHERENCE

HCPCS G9056: Oncology Practice Guideline Adherence

HCPCS-G2089-HBA1C-7-0-TO-9-0-PERCENT

HCPCS G2089: Most Recent Hemoglobin A1c 7.0–9.0%

HCPCS-G9551-IMAGING-FINAL-REPORT-NO-INCIDENTAL-LESION

HCPCS G9551: Final Imaging Report Without Incidental Lesion Noted

HCPCS-G0429-DERMAL-FILLER-INJECTION-FACIAL-LIPODYSTROPHY

HCPCS G0429: Dermal Filler Injection for Facial Lipodystrophy Syndrome

HCPCS-G0565-IMPLANTABLE-GLUCOSE-SENSOR-REPLACEMENT-365-DAY

HCPCS G0565: Removal and Replacement of 365-Day Implantable Glucose Sensor

Showing 1–10 of 1996

Modifier	Description	When to Use
`22`	Increased procedural services	When documentation supports substantially greater service than typical for counseling/coordination accompanying the outcome assessment.
`23`	Unusual anesthesia	Rarely applicable; use when outcome measurement occurs under unusual anesthesia circumstances (limited applicability).
`52`	Reduced services	When the ODI assessment was partially completed or abbreviated such that full administration was not performed.
`53`	Discontinued procedure	When the outcome assessment was attempted but discontinued due to patient inability to complete the tool.
`54`	Surgical care only	When the reporting clinician provided only the surgical component and another clinician manages follow-up assessment documentation.
`55`	Postoperative management only	When another clinician performed the surgery and the reporting clinician performed the one-year outcome assessment/management.
`56`	Preoperative management only	When the reporting clinician performed only the preoperative evaluation (relevant for attribution of baseline ODI).
`62`	Two surgeons	If two surgeons share responsibility for surgical care and documentation of outcomes is split between them.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery	Rarely applicable; use only if an advanced practice clinician assisted in intraoperative care and billing requires modifier.
`CO`	Left and right modifier used by some payers for bilateral procedures	Not commonly used for outcome measurement; include per payer guidance if required.
`CQ`	Telehealth services furnished with asynchronous telecommunications system	When the ODI was completed and reviewed using asynchronous electronic communication meeting payer rules.
`FX`	Split/shifted services (facility-specific)	Use per facility billing rules when services are split across encounters or sites.
`FY`	Special payment for secondary payer sequencing	Use when required by payer sequencing rules.
`QK`	Medical direction of two, three, or four assistants	If assistant billing is relevant to the encounter in institutional billing contexts.
`QX`	Certified registered nurse anesthetist (CRNA) service with medical direction	Not typically applicable to outcome reporting visits but included when CRNA involvement affects billing.

Taxonomy Code	Specialty	Notes
`208200000X`	Orthopedic Surgery	Surgeons who perform lumbar decompression/fusion and order/interpret ODI outcomes.
`208600000X`	Physical Medicine & Rehabilitation	Specialists who perform functional outcome assessment and longitudinal rehabilitation management.
`207L00000X`	Neurological Surgery	Neurosurgeons who perform spine surgery and document postoperative outcomes.
`364S00000X`	Sports Medicine	Physicians who may manage spine conditions and track functional outcomes.
`363LP2300X`	Pain Medicine	Pain specialists who use ODI to assess functional status and response to interventions.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`M51.26`	Other intervertebral disc displacement, lumbar region	Lumbar disc pathology commonly treated with surgery and tracked with `ODI` outcomes.
`M51.37`	Other intervertebral disc degeneration, lumbosacral region	Degenerative disc disease prompting surgical intervention and postoperative functional assessment.
`M54.16`	Radiculopathy, lumbar region	Preoperative symptom driving surgery and relevant to ODI-measured functional limitation.
`M54.5`	Low back pain	Primary symptom for which ODI is used to quantify disability and track outcomes.
`M48.06`	Spinal stenosis, lumbar region	Common surgical indication; ODI assesses postoperative functional improvement.
`G96.11`	Failed back surgery syndrome	Relevant when ODI remains elevated at one year indicating persistent disability.
`M43.16`	Spondylolisthesis, lumbar region	Surgical indication often followed by ODI-based outcomes measurement.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99214`	Office or other outpatient visit for the evaluation and management of an established patient, moderate complexity	Common code for the one-year postoperative visit during which the `ODI` is administered, scored, and documented.
`97001`	Physical therapy evaluation	Performed preoperatively or postoperatively in rehabilitation pathways; may provide baseline functional assessment complementary to the `ODI`.
`97110`	Therapeutic exercises to develop strength, endurance, range of motion and flexibility	Often provided in postoperative rehabilitation when ODI scores indicate ongoing disability.
`99080`	Special reports such as insurance forms, more than the usual documentation	Used when additional documentation of ODI results is provided for external payers or administrative review.
`99457`	Remote physiologic monitoring treatment management services, 20 minutes or more of clinical staff/physician/other qualified health care professional time	Applicable when `ODI` questionnaires are captured remotely and monitored as part of a care management program.

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