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HCPCS G2000 · Level II · G code

G2000: Blinded administration of convulsive therapy procedure, HCPCS Level II G code

Compiled from CMS files by the QuickIntell RCM Editorial Team · Data effective · Method: reference methodology · Report a data correction

Data currency: HCPCS Level II file: October 2026 (effective October 1, 2026); PFS relative value file: RVU26D, released August 26, 2026 (effective October 1, 2026); NCCI MUE tables: 2026 Q4 (effective October 1, 2026); NCCI PTP edits: v323r0 (2026 Q4) (effective October 1, 2026); OPPS Addendum B: October 2026 (effective October 1, 2026). Next CMS release: January 1, 2027 (quarterly update) for the HCPCS Level II file and NCCI MUE tables and NCCI PTP edits and OPPS Addendum B; RVU27A with the CY2027 PFS final rule, effective January 1, 2027 for the PFS relative value file.

Key facts for G2000

Medicare payment
$381.24
OPPS rate, SI S
Coverage code
C
carrier judgment, so the Medicare contractor decides coverage
Facility outpatient MUE
1
MAI 3
OPPS status
SI S
Procedure or service, not discounted when multiple
NCCI PTP pairs
0
practitioner file
LCDs and articles
0 / 0

TL;DR

HCPCS Level II G2000 reads "Blinded administration of convulsive therapy procedure, either electroconvulsive therapy (ect, current covered gold standard) or magnetic seizure therapy (mst, non-covered experimental therapy), performed in an approved ide-based clinical trial, per treatment session" in the October 2026 file; it dates from 2018. Hospital outpatient departments are paid $381.24 for G2000 under status indicator S, APC 5723 (Level 3 Diagnostic Tests and Related Services), minimum unadjusted copayment $76.25 (October 2026 Addendum B). Its 2026 Q4 MUEs per date of service: practitioner 1 (MAI 3, Nature of Service/Procedure); hospital outpatient 1 (MAI 3, Nature of Service/Procedure). G2000 appears in no active LCD or billing and coding article, so coverage follows HCPCS coverage code C (carrier judgment, so the Medicare contractor decides coverage) and any NCD. HCPCS record: BETOS P6D (minor procedures - other (non-Medicare fee schedule)); pricing indicator 00; type of service 1 (medical care). Nearby codes: G2001, G2002, G2003, G2005.

G2000 descriptor and code status

The October 2026 HCPCS Level II file describes G2000 as “Blinded administration of convulsive therapy procedure, either electroconvulsive therapy (ect, current covered gold standard) or magnetic seizure therapy (mst, non-covered experimental therapy), performed in an approved ide-based clinical trial, per treatment session”. It sits in the G section (procedures and professional services, temporary), listed with the other G codes.

HCPCS file attributes of G2000
FieldValue
Short descriptorBlinded conv. tx mdd clin tr
Added to HCPCS2018-08-01
Last actionN (no maintenance), effective 2018-08-01
Coverage codeC: carrier judgment, so the Medicare contractor decides coverage
Pricing indicator00: not separately priced by Part B
BETOS categoryP6D: minor procedures - other (non-Medicare fee schedule)
Type of service1: medical care

Medicare payment for G2000

Hospital outpatient departments are paid $381.24 for G2000 under status indicator S, APC 5723 (Level 3 Diagnostic Tests and Related Services), minimum unadjusted copayment $76.25 (October 2026 Addendum B). The amounts below are national figures from the October 2026 CMS files; the contractor applies the locality, rural or state adjustment and the beneficiary's cost sharing.

Physician fee schedule (RVU26D)

Status R: restricted coverage: contractor-priced when covered. Global period YYY (the contractor sets the global period); PC/TC indicator 0 (physician service; the professional/technical split does not apply).

PFS relative values and national payment for G2000
ComponentNon-facilityFacility
Work RVU0.000.00
Practice expense RVU0.000.00
Malpractice RVU0.000.00
Total RVUs0.000.00
National payment (CF $33.4009)n/an/a
Qualifying APM participant (CF $33.5675)n/an/a
  • Multiple procedures (modifier 51): no multiple-procedure reduction
  • Bilateral (modifier 50): 150% bilateral adjustment does not apply
  • Assistant at surgery: assistant at surgery paid only with documentation; co-surgeons: co-surgeons not permitted; team surgery: team surgeons not permitted
  • Physician supervision of diagnostic procedures: supervision concept does not apply

Hospital outpatient (OPPS Addendum B)

Status indicator S (Procedure or service, not discounted when multiple), APC 5723 (Level 3 Diagnostic Tests and Related Services), national unadjusted payment $381.24 with a minimum unadjusted copayment of $76.25.

Medically Unlikely Edits for G2000

Its 2026 Q4 MUEs per date of service: practitioner 1 (MAI 3, Nature of Service/Procedure); hospital outpatient 1 (MAI 3, Nature of Service/Procedure). The facility outpatient MUE is a date-of-service clinical edit: units above the limit deny but can be paid on appeal with documentation.

MUE values for G2000 by setting
SettingMUE (units/DOS)MAICMS rationale
Practitioner services13 Date of Service Edit: ClinicalNature of Service/Procedure
Facility outpatient hospital13 Date of Service Edit: ClinicalNature of Service/Procedure

The MUE lookup for G2000 shows every setting next to any other code on the same claim.

NCCI edits and add-on rules

No active practitioner PTP pair lists G2000 in v323r0.

G2000 is neither an add-on code nor a designated primary code in the 2026 Q4 NCCI add-on edit file.

Pair counts show exposure, not the answer for one claim. Check G2000 against a second code to see whether the pair bundles and whether a modifier can separate the services.

Medicare coverage policies for G2000

No current LCD or billing and coding article lists G2000. The HCPCS coverage code C means carrier judgment, so the Medicare contractor decides coverage, and any National Coverage Determination for the service still applies.

Denials to expect on G2000

CARC 50 · N115

the service is not reasonable and necessary for the diagnosis on the claim

CARC 151 · N362

units of G2000 exceed the facility outpatient MUE of 1 per date of service

CARC 4

the modifier reported is inconsistent with the code

CARC 16

the claim lacks information needed to adjudicate the line, such as an order, NPI or required modifier

Where QuickIntell fits for G2000 claims

QuickCode supports qualified coder review of units, modifiers and NCCI pairs for G2000 before the claim leaves, and QuickRCM carries claim readiness and the denial follow-up when an edit or coverage policy is missed.

See QuickCode for coder reviewSee QuickRCM for denial follow-upBook a meeting

Frequently asked questions: HCPCS G2000

What does HCPCS code G2000 describe?

"Blinded administration of convulsive therapy procedure, either electroconvulsive therapy (ect, current covered gold standard) or magnetic seizure therapy (mst, non-covered experimental therapy), performed in an approved ide-based clinical trial, per treatment session" (short descriptor "Blinded conv. tx mdd clin tr"), in the G section (procedures and professional services, temporary). Added 2018-08-01.

Is G2000 a CPT code?

No. G2000 is a CMS HCPCS Level II code; CPT codes are the AMA's five-character set.

What does Medicare pay for G2000?

Hospital outpatient departments are paid $381.24 for G2000 under status indicator S, APC 5723 (Level 3 Diagnostic Tests and Related Services), minimum unadjusted copayment $76.25 (October 2026 Addendum B).

How many units of G2000 can be billed per day?

Its 2026 Q4 MUEs per date of service: practitioner 1 (MAI 3, Nature of Service/Procedure); hospital outpatient 1 (MAI 3, Nature of Service/Procedure). For the facility outpatient MUE (MAI 3), units above 1 deny for the day but can be paid on appeal with documentation; denials arrive as CARC 151.

Does Medicare cover G2000?

G2000 appears in no active LCD or billing and coding article, so coverage follows HCPCS coverage code C (carrier judgment, so the Medicare contractor decides coverage) and any NCD.

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.

Disclaimer

This page is an operational reference compiled from CMS publications: the HCPCS Level II file, the physician, DMEPOS and clinical laboratory fee schedules, OPPS and ASC addenda, NCCI MUE, PTP and add-on edit tables and the Medicare Coverage Database. Amounts are Medicare national figures before locality and state adjustment; Medicaid and commercial payers set their own. CPT codes are shown as numbers only; CPT descriptors are copyright AMA. Nothing here is legal, clinical or billing advice.

Found a figure that does not match the CMS file? Report a data correction with the CMS file and the value you expected; the request reaches the editorial team through the contact form.