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G3002 Description, Billing Rules, & Use Cases

HCPCS G3002 is used to bill for Chronic Pain Management (CPM) services that are personally delivered by a physician or other qualified healthcare professional (QHP).

This code covers the first 30 minutes of CPM provided in a calendar month for Medicare patients living with persistent or recurring pain and requires an initial face-to-face visit of at least 30 minutes.

Unlike CCM, where staff time is billable under separate codes, G3002 time must be personally provided by the physician or QHP. It cannot be delegated to clinical staff or care coordinators.

What is HCPCS Code G3002?

HCPCS G3002 is the CMS code for the first 30 minutes of Chronic Pain Management and treatment personally provided by a physician or qualified healthcare professional in a calendar month. The code was added by CMS effective January 1, 2023, and represents a monthly bundle of services for patients with chronic pain.

The G3002 monthly bundle includes:

  • Diagnosis, assessment, and monitoring
  • Administration of a validated pain rating scale or tool
  • Development, implementation, revision, and maintenance of a person-centered care plan that includes strengths, goals, clinical needs, and desired outcomes
  • Overall treatment management
  • Medication management
  • Pain and health literacy counseling
  • Facilitation and coordination of any necessary behavioral health treatment
  • Crisis care related to chronic pain when needed
  • Ongoing communication and care coordination with other practitioners furnishing care, including physical therapy, occupational therapy, complementary and integrative approaches, and community-based care

For each additional 15 minutes of provider time in the same month, use add-on code G3003, billable up to four units per calendar month under the CMS Medically Unlikely Edits.

G3002 Time Thresholds and Code Combinations

G3002 is the base monthly code. G3003 is the add-on for each additional 15-minute increment beyond the first 30 minutes. Time must meet or exceed each threshold before the corresponding code can be billed.

Important to Note:

Only one practitioner can bill CPM for a given patient in a calendar month. CPM time cannot be reported alongside CCM, PCM, or APCM for the same patient in the same month. Time spent on those programs cannot be counted toward the G3002 threshold.

Table showing how G3002 forms the base of chronic pain management billing, with G3003 add-ons based on total time spent by the physician or QHP.

When to Use G3002: Common Scenarios and Use Cases

The examples below show how qualifying time adds up in practice. After the initial face-to-face visit, monthly service time can be delivered through whatever modality fits the clinical situation, including phone and video.

Pain Reassessment and Medication Titration
Multidisciplinary Coordination for Complex Chronic Pain
Crisis & Care Plan Maintenance

Pain Reassessment and Medication Titration

A physician spends time:

  • Reassessing pain using a validated rating scale
  • Adjusting opioid or non-opioid medication regimen and reviewing risks
  • Updating the care plan to reflect new function and sleep goals

Total qualifying time: 32 minutes
Billing: G3002

Primary care doctor discussing health concerns with senior male patient in modern clinic, highlighting patient engagement and care planning for chronic conditions

Multidisciplinary Coordination for Complex Chronic Pain

A nurse practitioner delivers:

  • Coordination with the patient’s PT and behavioral health provider
  • Care plan revision incorporating complementary and integrative approaches
  • Health literacy counseling on pacing and flare management
  • Documentation of patient goals and outcomes

Total qualifying time: 50 minutes
Billing: G3002 + G3003

Senior woman reviewing care plan with male physician during medical consultation, illustrating shared decision-making and chronic condition management in primary care

Crisis Episode Plus Ongoing Care Plan Maintenance

A physician works with the patient and care team to:

  • Provide crisis care for an acute pain flare, including same-day medication review
  • Coordinate with the emergency department and primary care
  • Update the care plan and document changes in function and risk
  • Counsel the patient and caregiver on next steps

Total qualifying time: 75 minutes
Billing: G3002 + G3003 x 3

Physician discussing care plan with senior couple during office visit, highlighting shared decision-making and chronic care coordination for aging patients

G3002 Billing Requirements and Eligibility

The following requirements must be met for G3002 to be reimbursed.

Patient Eligibility Criteria

  • The patient is under the care of a Medicare-enrolled physician or other qualified health professional
  • The patient has a chronic pain condition that requires ongoing management
  • The patient has received an initial face-to-face visit of at least 30 minutes from the billing physician or QHP
  • Patient consent has been obtained and documented in the medical record, including that the patient has been informed about the service, applicable cost-sharing, the fact that only one practitioner can bill CPM per calendar month, and the patient’s right to stop services at any time

Provider Requirements

  • The billing provider must be a physician or other QHP, including MDs, DOs, nurse practitioners, physician assistants, clinical nurse specialists, and certified nurse-midwives
  • The provider must personally deliver at least 30 minutes of CPM in the calendar month
  • Unlike CCM and CHI, time billed under G3002 cannot be delegated to auxiliary personnel, care coordinators, or community health workers
  • The initial visit must be face-to-face; subsequent monthly service time can be provided through modalities appropriate to the clinical situation, including phone and video, as long as the work is personally performed by the physician or QHP

Service Requirements

  • A minimum of 30 minutes of provider time must be documented within the calendar month
  • An initial face-to-face visit of at least 30 minutes must have occurred before any CPM time is billed
  • A person-centered care plan must be developed, implemented, revised, and maintained in the medical record
  • A validated pain rating scale or tool must be administered
  • G3002 may not be billed in the same calendar month as another practitioner billing G3002 for the same patient
  • Time must be distinct from time reported under other care management codes for the same patient and month

G3002 Billing Documentation Checklist

To compliantly bill G3002, your documentation must clearly show:

  • A minimum of 30 minutes of CPM personally performed by a physician or QHP within the calendar month
    • Include specific dates, tasks performed, and total time recorded
  • An initial face-to-face visit of at least 30 minutes with the billing physician or QHP, completed before CPM time is billed
  • Documented patient consent in the medical record covering the service, cost-sharing, the single-practitioner rule, and the right to stop services
  • Administration of a validated pain rating scale or tool, with the result documented
  • A person-centered care plan that was:
    • Established, implemented, revised, or maintained during the billing period
    • Tailored to the patient’s pain condition, medications, behavioral health context, and goals
    • Documented in the medical record
  • Notes reflecting the monthly bundle activities, such as:
    • Medication management
    • Behavioral health coordination
    • Pain and health literacy counseling
    • Communication with PT, OT, complementary and integrative providers, or community-based care
    • Crisis care, if delivered
  • A statement verifying that billed time is not duplicated or overlapped with CCM, PCM, APCM, or any other time-based care management code reported that month

Common G3002 Billing Mistakes (and How to Avoid Them)

❌ Billing More Than One Unit of G3002 per Date of Service

The CMS Medically Unlikely Edit (MUE) limits G3002 to 1 unit, with an MAI of 2; an absolute date-of-service policy edit. Same-day units beyond this are denied. Report G3002 once for the first 30 minutes, and use G3003 for each additional 15 minutes.

❌ Counting Staff Time Toward the G3002 Threshold

G3002 time must be personally provided by the physician or QHP. Time spent by care coordinators, medical assistants, or community health workers does not count, even if the work supports the same care plan. This is the most significant operational difference between CPM and CCM.

❌ Billing G3002 Without an Initial Face-to-Face Visit

The initial face-to-face visit of at least 30 minutes is a hard prerequisite. CPM time billed before this visit is documented in the medical record is not compliant.

❌ Missing or Incomplete Consent Documentation

Verbal or written consent is acceptable, but it must be documented in the medical record and must cover the service description, applicable cost-sharing, the single-practitioner rule, and the right to stop services. Implied consent is not sufficient.

❌ Two Practitioners Billing CPM for the Same Patient in the Same Month

Only one practitioner can bill CPM for a given patient per calendar month. Coordinate within the practice and across referring providers to confirm who the billing practitioner for the month is.

❌ Overlapping Time with Other Care Management Codes

Time billed under G3002 must be distinct from time reported for:

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