Q4029 HCPCS code: Cast supplies, long leg cast, adult (11 years +), plaster
Q4029 is the HCPCS Level II code for cast supplies, long leg cast, adult (11 years +), plaster. The 2026 Medicare DMEPOS fee schedule pays $36.82 depending on the state. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case. The NCCI unit limit is 2 per day on outpatient hospital claims. Medicare volume fell 64% from 2022 to 2024 (36 to 13 services). In 2024, about 12 clinicians billed Medicare for Q4029 for 13 beneficiaries. Its average fee ranks 35 of 49 Q40 codes (family range $2.68–$235.64).
Code details
| Field | Value |
|---|---|
| Section | Q codes — Temporary codes |
| Coverage code | C — Carrier judgment |
| Pricing indicator | 55 |
| BETOS category | D1A — Medical/surgical supplies |
| Added | 2001-07-01 |
| Last action effective | 2014-10-01 |
2026 Medicare DMEPOS fee schedule for Q4029
| Modifier | Meaning | Lowest state fee | Highest state fee | Ceiling | Floor |
|---|---|---|---|---|---|
| — | base fee | $36.82 | $36.82 | $36.82 | $31.30 |
| State | Modifier | Fee | Rural fee |
|---|---|---|---|
| AK | — | $36.82 | — |
| AL | — | $36.82 | — |
| AR | — | $36.82 | — |
| AZ | — | $36.82 | — |
| CA | — | $36.82 | — |
| CO | — | $36.82 | — |
| CT | — | $36.82 | — |
| DC | — | $36.82 | — |
| DE | — | $36.82 | — |
| FL | — | $36.82 | — |
| GA | — | $36.82 | — |
| HI | — | $36.82 | — |
| IA | — | $36.82 | — |
| ID | — | $36.82 | — |
| IL | — | $36.82 | — |
| IN | — | $36.82 | — |
| KS | — | $36.82 | — |
| KY | — | $36.82 | — |
| LA | — | $36.82 | — |
| MA | — | $36.82 | — |
| MD | — | $36.82 | — |
| ME | — | $36.82 | — |
| MI | — | $36.82 | — |
| MN | — | $36.82 | — |
| MO | — | $36.82 | — |
| MS | — | $36.82 | — |
| MT | — | $36.82 | — |
| NC | — | $36.82 | — |
| ND | — | $36.82 | — |
| NE | — | $36.82 | — |
| NH | — | $36.82 | — |
| NJ | — | $36.82 | — |
| NM | — | $36.82 | — |
| NV | — | $36.82 | — |
| NY | — | $36.82 | — |
| OH | — | $36.82 | — |
| OK | — | $36.82 | — |
| OR | — | $36.82 | — |
| PA | — | $36.82 | — |
| PR | — | $36.82 | — |
| RI | — | $36.82 | — |
| SC | — | $36.82 | — |
| SD | — | $36.82 | — |
| TN | — | $36.82 | — |
| TX | — | $36.82 | — |
| UT | — | $36.82 | — |
| VA | — | $36.82 | — |
| VI | — | $36.82 | — |
| VT | — | $36.82 | — |
| WA | — | $36.82 | — |
| WI | — | $36.82 | — |
| WV | — | $36.82 | — |
| WY | — | $36.82 | — |
How the Q4029 fee compares
| Measure | Value |
|---|---|
| Rank among 49 Q40 codes (lowest = 1) | 35 |
| Family fee range (average of state fees) | $2.68–$235.64 |
| Rural fee uplift | — |
Who bills Q4029 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 12 |
| Medicare beneficiaries | 13 |
| States with claims | 0 |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for Q4029, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 36 | 29 | $28.71 | $22.32 |
| 2023 | 23 | 19 | $30.74 | $22.99 |
| 2024 | 13 | 13 | $33.13 | $26.40 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 2 | Anatomic Consideration |
| practitioner claims | 2 | Anatomic Consideration |
What changed for Q4029
- 2026-01-01: Average state fee rose 2.0%: $36.10 to $36.82
- 2001-07-01: Q4029 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code Q4029?
Q4029 is the HCPCS Level II code for cast supplies, long leg cast, adult (11 years +), plaster. Short descriptor: "Cast sup long leg plaster".
How much does Medicare pay for Q4029?
Under the 2026 DMEPOS fee schedule, non-rural state fees are base (base fee): $36.82. Rural fees can be higher.
Does Medicare cover Q4029?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
Did the Medicare fee for Q4029 change in 2026?
The average non-rural state fee moved from $36.10 in 2025 to $36.82 in 2026 (+2.0%). CMS's next quarterly HCPCS and DMEPOS update takes effect January 1, 2027.
How many units of Q4029 can be billed per day?
2 on outpatient hospital claims; 2 on practitioner claims (NCCI medically unlikely edits).
Related Q40 codes
- Q4001 — Casting supplies, body cast adult, with or without head, plaster ($62.36–$62.36)
- Q4002 — Cast supplies, body cast adult, with or without head, fiberglass ($235.64–$235.64)
- Q4003 — Cast supplies, shoulder cast, adult (11 years +), plaster ($44.78–$44.78)
- Q4004 — Cast supplies, shoulder cast, adult (11 years +), fiberglass ($155.03–$155.03)
- Q4005 — Cast supplies, long arm cast, adult (11 years +), plaster ($16.51–$16.51)
- Q4006 — Cast supplies, long arm cast, adult (11 years +), fiberglass ($37.20–$37.20)
- Q4007 — Cast supplies, long arm cast, pediatric (0-10 years), plaster ($8.25–$8.25)
- Q4008 — Cast supplies, long arm cast, pediatric (0-10 years), fiberglass ($18.59–$18.59)
- Q4009 — Cast supplies, short arm cast, adult (11 years +), plaster ($11.03–$11.03)
- Q4010 — Cast supplies, short arm cast, adult (11 years +), fiberglass ($24.80–$24.80)
- Q4011 — Cast supplies, short arm cast, pediatric (0-10 years), plaster ($5.50–$5.50)
- Q4012 — Cast supplies, short arm cast, pediatric (0-10 years), fiberglass ($12.43–$12.43)
Building a device that would bill under a code like this? Caduvo matches a device description to HCPCS/CPT codes, Medicare coverage and payment, and the FDA pathway in one report.
Next steps
- Run a reimbursement report for a device billed under Q4029
- Watch Q4029 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for Q4029
Sources: CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.