K1004 HCPCS code: Low frequency ultrasonic diathermy treatment device for home use
K1004 is the HCPCS Level II code for low frequency ultrasonic diathermy treatment device for home use. Its Medicare coverage code is S (Non-covered by Medicare statute): Medicare is barred by law from covering it. The NCCI unit limit is 1 per day on DME suppliers.
Code details
| Field | Value |
|---|---|
| Section | K codes — Temporary codes for DME MACs |
| Coverage code | S — Non-covered by Medicare statute |
| Pricing indicator | 00 — Not separately priced by Medicare |
| BETOS category | Z2 |
| Added | 2020-01-01 |
| Last action effective | 2023-10-01 |
Related codes Medicare does pay
Medicare does not pay under K1004. These codes in the same K10 family carry a current DMEPOS fee:
- K1007 — Bilateral hip, knee, ankle, foot device, powered, includes pelvic component, single or double upright(s), knee joints any type, with or without ankle joints any type, includes all components and accessories, motors, microprocessors, sensors: $95,081.03–$95,081.03
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| DME suppliers | 1 | Nature of Equipment |
| outpatient hospital claims | 1 | CMS Policy |
| practitioner claims | 1 | CMS Policy |
What changed for K1004
- 2020-01-01: K1004 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 K1004?
K1004 is the HCPCS Level II code for low frequency ultrasonic diathermy treatment device for home use. Short descriptor: "Lo freq us diathermy device".
Does Medicare cover K1004?
Coverage code S — Non-covered by Medicare statute. Medicare is barred by law from covering it.
Which related codes does Medicare pay instead of K1004?
Codes in the same K10 family with a DMEPOS fee include K1007 ($95,081.03–$95,081.03). Check the item matches the code's descriptor before billing.
How many units of K1004 can be billed per day?
1 on DME suppliers; 1 on outpatient hospital claims; 1 on practitioner claims (NCCI medically unlikely edits).
Related K10 codes
- K1001 — Electronic positional obstructive sleep apnea treatment, with sensor, includes all components and accessories, any type
- K1002 — Cranial electrotherapy stimulation (ces) system, any type
- K1003 — Whirlpool tub, walk-in, portable
- K1005 — Disposable collection and storage bag for breast milk, any size, any type, each
- K1006 — Suction pump, home model, portable or stationary, electric, any type, for use with external urine management system
- K1007 — Bilateral hip, knee, ankle, foot device, powered, includes pelvic component, single or double upright(s), knee joints any type, with or without ankle joints any type, includes all components and accessories, motors, microprocessors, sensors ($95,081.03–$95,081.03)
- K1009 — Speech volume modulation system, any type, including all components and accessories
- K1010 — Indwelling intraurethral drainage device with valve, patient inserted, replacement only, each
- K1011 — Activation device for intraurethral drainage device with valve, replacement only, each
- K1012 — Charger and base station for intraurethral activation device, replacement only
- K1013 — Enema tube, with or without adapter, any type, replacement only, each
- K1014 — Addition, endoskeletal knee-shin system, 4 bar linkage or multiaxial, fluid swing and stance phase control
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Next steps
- Run a reimbursement report for a device billed under K1004
- Watch K1004 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for K1004
Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule; 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.