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HCPCS Q0508 · Level II · Q code

Q0508: Miscellaneous supply or accessory for use with an implanted ventricular assist device, HCPCS Level II Q 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 Q0508

Medicare payment
no PFS amount
PFS status E; OPPS SI A: paid under another fee schedule or system
Coverage code
D
special coverage instructions apply
Practitioner MUE
4
MAI 3
OPPS status
SI A
Services not paid under OPPS; paid under fee schedule or other payment system
NCCI PTP pairs
0
practitioner file
LCDs and articles
0 / 0

TL;DR

HCPCS Level II Q0508 reads "Miscellaneous supply or accessory for use with an implanted ventricular assist device" in the October 2026 file; it dates from 2013. The physician fee schedule lists Q0508 with status E (excluded from the physician fee schedule by regulation), so the PFS carries no national amount for it. Its OPPS status indicator is A, which the I/OCE table defines as "Services not paid under OPPS; paid under fee schedule or other payment system": Medicare pays Q0508 under a fee schedule or payment system other than OPPS. Its 2026 Q4 MUEs per date of service: practitioner 4 (MAI 3, Clinical: Data); hospital outpatient 24 (MAI 3, Clinical: Data). No current LCD or billing article lists Q0508; its HCPCS coverage code is D (special coverage instructions apply). HCPCS record: BETOS D1F (prosthetic/orthotic devices); pricing indicator 46; type of service P (lump-sum purchase of DME, prosthetics or orthotics). Nearby codes: Q0506, Q0163, Q0112, Q0111.

Q0508 descriptor and code status

The October 2026 HCPCS Level II file describes Q0508 as “Miscellaneous supply or accessory for use with an implanted ventricular assist device”. It sits in the Q section (temporary codes), listed with the other Q codes for services and supplies (non-drug). Although searches often call it the "Q0508 CPT code", Q0508 is a HCPCS Level II code maintained by CMS, not an AMA CPT code; both go in the same procedure-code field on the claim.

HCPCS file attributes of Q0508
FieldValue
Short descriptorMis sup/acc imp vad
Added to HCPCS2013-04-01
Last actionN (no maintenance), effective 2013-04-01
Coverage codeD: special coverage instructions apply
Pricing indicator46: DMEPOS contractor-priced (not otherwise classified, individual determination or gap-filled)
BETOS categoryD1F: prosthetic/orthotic devices
Type of serviceP: lump-sum purchase of DME, prosthetics or orthotics

Medicare payment for Q0508

The physician fee schedule lists Q0508 with status E (excluded from the physician fee schedule by regulation), so the PFS carries no national amount for it. Its OPPS status indicator is A, which the I/OCE table defines as "Services not paid under OPPS; paid under fee schedule or other payment system": Medicare pays Q0508 under a fee schedule or payment system other than OPPS. 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 E: excluded from the physician fee schedule by regulation. Global period XXX (global surgery concept does not apply); PC/TC indicator 9 (professional/technical concept does not apply).

Hospital outpatient (OPPS Addendum B)

Status indicator A (Services not paid under OPPS; paid under fee schedule or other payment system), with no separate OPPS payment rate.

Medically Unlikely Edits for Q0508

Its 2026 Q4 MUEs per date of service: practitioner 4 (MAI 3, Clinical: Data); hospital outpatient 24 (MAI 3, Clinical: Data). 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 Q0508 by setting
SettingMUE (units/DOS)MAICMS rationale
Practitioner services43 Date of Service Edit: ClinicalClinical: Data
Facility outpatient hospital243 Date of Service Edit: ClinicalClinical: Data

The MUE lookup for Q0508 shows every setting next to any other code on the same claim.

NCCI edits and add-on rules

No active practitioner PTP pair lists Q0508 in v323r0.

Q0508 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 Q0508 against a second code to see whether the pair bundles and whether a modifier can separate the services.

Medicare coverage policies for Q0508

No current LCD or billing and coding article lists Q0508. The HCPCS coverage code D means special coverage instructions apply, and any National Coverage Determination for the service still applies.

Denials to expect on Q0508

CARC 50 · N115

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

CARC 151 · N362

units of Q0508 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 Q0508 claims

QuickCode supports qualified coder review of units, modifiers and NCCI pairs for Q0508 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 Q0508

What does HCPCS code Q0508 describe?

"Miscellaneous supply or accessory for use with an implanted ventricular assist device" (short descriptor "Mis sup/acc imp vad"), in the Q section (temporary codes). Added 2013-04-01.

Is Q0508 a CPT code?

No. Q0508 is a CMS HCPCS Level II code; CPT codes are the AMA's five-character set. Searches for "Q0508 CPT code" mean this Level II code.

What does Medicare pay for Q0508?

The physician fee schedule lists Q0508 with status E (excluded from the physician fee schedule by regulation), so the PFS carries no national amount for it. Its OPPS status indicator is A, which the I/OCE table defines as "Services not paid under OPPS; paid under fee schedule or other payment system": Medicare pays Q0508 under a fee schedule or payment system other than OPPS.

How many units of Q0508 can be billed per day?

Its 2026 Q4 MUEs per date of service: practitioner 4 (MAI 3, Clinical: Data); hospital outpatient 24 (MAI 3, Clinical: Data). 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 Q0508?

No current LCD or billing article lists Q0508; its HCPCS coverage code is D (special coverage instructions apply).

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.