Skip to main content
HCPCS G0024 · Level II · G code

G0024: Principal illness navigation services, 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 G0024

Medicare payment
$54.44
PFS non-facility, national; facility $31.06
Coverage code
C
carrier judgment, so the Medicare contractor decides coverage
Practitioner MUE
4
MAI 3
OPPS status
SI N
Items and Services packaged into APC rates
NCCI PTP pairs
0
practitioner file
LCDs and articles
0 / 0
add-on code

TL;DR

G0024 is a Level II code from the G section (procedures and professional services, temporary), in use since 2024: "Principal illness navigation services, additional 30 minutes per calendar month (list separately in addition to g0023)". National PFS payment for G0024 is $54.44 in an office and $31.06 in a facility (October 2026), built from 0.70 work, 0.88 practice-expense and 0.05 malpractice RVUs at $33.4009 per RVU. Qualifying APM participants get $54.72 at $33.5675. Global period ZZZ (add-on service inside the primary service's global period). CMS caps G0024 at practitioner 4 (MAI 3, Nature of Service/Procedure); hospital outpatient 4 (MAI 3, Nature of Service/Procedure) units per day in the 2026 Q4 MUE tables. G0024 is an add-on code (NCCI edit type 1): Medicare pays it only on a claim that also carries one of 1 primary code such as G0023. G0024 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. OPPS status indicator N: Items and Services packaged into APC rates. HCPCS record: BETOS M5D (specialist - other); pricing indicator 13; type of service 1 (medical care). Nearby codes: G0023, G0027, G0019, G0018.

G0024 descriptor and code status

The October 2026 HCPCS Level II file describes G0024 as “Principal illness navigation services, additional 30 minutes per calendar month (list separately in addition to g0023)”. It sits in the G section (procedures and professional services, temporary), listed with the other G codes.

HCPCS file attributes of G0024
FieldValue
Short descriptorPin srv add 30 min pr m
Added to HCPCS2024-01-01
Last actionN (no maintenance), effective 2024-01-01
Coverage codeC: carrier judgment, so the Medicare contractor decides coverage
Pricing indicator13: physician fee schedule, priced by the contractor
BETOS categoryM5D: specialist - other
Type of service1: medical care

Medicare payment for G0024

National PFS payment for G0024 is $54.44 in an office and $31.06 in a facility (October 2026), built from 0.70 work, 0.88 practice-expense and 0.05 malpractice RVUs at $33.4009 per RVU. Qualifying APM participants get $54.72 at $33.5675. Global period ZZZ (add-on service inside the primary service's global period). 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 A: active: paid separately under the physician fee schedule when covered. Global period ZZZ (add-on service inside the primary service's global period); PC/TC indicator 0 (physician service; the professional/technical split does not apply).

PFS relative values and national payment for G0024
ComponentNon-facilityFacility
Work RVU0.700.70
Practice expense RVU0.880.18
Malpractice RVU0.050.05
Total RVUs1.630.93
National payment (CF $33.4009)$54.44$31.06
Qualifying APM participant (CF $33.5675)$54.72$31.22
  • 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 N (Items and Services packaged into APC rates), with no separate OPPS payment rate.

Medically Unlikely Edits for G0024

CMS caps G0024 at practitioner 4 (MAI 3, Nature of Service/Procedure); hospital outpatient 4 (MAI 3, Nature of Service/Procedure) units per day in the 2026 Q4 MUE tables. The practitioner MUE is a date-of-service clinical edit: units above the limit deny but can be paid on appeal with documentation.

MUE values for G0024 by setting
SettingMUE (units/DOS)MAICMS rationale
Practitioner services43 Date of Service Edit: ClinicalNature of Service/Procedure
Facility outpatient hospital43 Date of Service Edit: ClinicalNature of Service/Procedure

The MUE lookup for G0024 shows every setting next to any other code on the same claim.

NCCI edits and add-on rules

No active practitioner PTP pair lists G0024 in v323r0.

G0024 is an add-on code: it is payable only with a primary service on the same claim (G0023). CPT primary codes are shown as numbers only.

Pair counts show exposure, not the answer for one claim. Check G0024 against a second code to see whether the pair bundles and whether a modifier can separate the services.

Medicare coverage policies for G0024

No current LCD or billing and coding article lists G0024. 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 G0024

CARC 50 · N115

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

CARC 151 · N362

units of G0024 exceed the practitioner MUE of 4 per date of service

CARC 4

the modifier reported is inconsistent with the code

CARC 16

the claim lacks the description, invoice or pricing detail a contractor-priced code needs

Where QuickIntell fits for G0024 claims

QuickCode supports qualified coder review of units, modifiers and NCCI pairs for G0024 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 G0024

What does HCPCS code G0024 describe?

"Principal illness navigation services, additional 30 minutes per calendar month (list separately in addition to g0023)" (short descriptor "Pin srv add 30 min pr m"), in the G section (procedures and professional services, temporary). Added 2024-01-01.

Is G0024 a CPT code?

It is not. G0024 belongs to the G section (procedures and professional services, temporary) of HCPCS Level II, the CMS code set, not to AMA CPT.

What does Medicare pay for G0024?

National PFS payment for G0024 is $54.44 in an office and $31.06 in a facility (October 2026), built from 0.70 work, 0.88 practice-expense and 0.05 malpractice RVUs at $33.4009 per RVU. Qualifying APM participants get $54.72 at $33.5675. Global period ZZZ (add-on service inside the primary service's global period).

Is G0024 an add-on code?

G0024 is an add-on code (NCCI edit type 1): Medicare pays it only on a claim that also carries one of 1 primary code such as G0023.

How many units of G0024 can be billed per day?

CMS caps G0024 at practitioner 4 (MAI 3, Nature of Service/Procedure); hospital outpatient 4 (MAI 3, Nature of Service/Procedure) units per day in the 2026 Q4 MUE tables. For the practitioner MUE (MAI 3), units above 4 deny for the day but can be paid on appeal with documentation; denials arrive as CARC 151.

Does Medicare cover G0024?

G0024 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.

CMS guidance

The Medicare Learning Network publication that CMS issues on this topic, cited by ICN and publication date:

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.