J7674 HCPCS code: Methacholine chloride administered as inhalation solution through a nebulizer, per 1 mg
J7674 is the HCPCS Level II code for methacholine chloride administered as inhalation solution through a nebulizer, per 1 mg. In 2024 Medicare paid an average of $0.88 per service for J7674 across 64,098 services. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case. The NCCI unit limit is 100 per day on outpatient hospital claims. Medicare volume fell 6% from 2022 to 2024 (67,907 to 64,098 services). In 2024, about 283 clinicians billed Medicare for J7674 for 1,914 beneficiaries; Tennessee, Texas, Oklahoma accounted for 53% of services.
Code details
| Field | Value |
|---|---|
| Section | J codes — Drugs administered other than oral method |
| Coverage code | C — Carrier judgment |
| Pricing indicator | 51 — Drug or biological (priced per ASP/average sales price rules) |
| BETOS category | O1E — Other drugs |
| Added | 2005-01-01 |
| Last action effective | 2005-01-01 |
Who bills J7674 (2024)
| Measure | Value |
|---|---|
| Clinicians billing (by place of service) | 283 |
| Medicare beneficiaries | 1,914 |
| States with claims | 20 |
| Share of services in top 3 states (Tennessee, Texas, Oklahoma) | 53% |
Counts only. Supplier and clinician names, contact lists and state-by-state detail are in Caduvo.
Medicare utilization for J7674, 2022–2024
| Year | Services | Beneficiaries | Avg. allowed | Avg. paid |
|---|---|---|---|---|
| 2022 | 67,907 | 1,268 | $0.79 | $0.60 |
| 2023 | 67,408 | 1,898 | $0.78 | $0.61 |
| 2024 | 64,098 | 1,914 | $1.14 | $0.88 |
States with the most J7674 services (2024)
| State | Services | Avg. paid |
|---|---|---|
| Tennessee | 13,585 | $0.95 |
| Texas | 13,163 | $0.90 |
| Oklahoma | 4,922 | $0.94 |
| Alabama | 3,483 | $0.70 |
| Illinois | 3,415 | $0.91 |
NCCI unit limits (MUE)
| Claim type | Max units per day | Rationale |
|---|---|---|
| outpatient hospital claims | 100 | Prescribing Information |
| practitioner claims | 100 | Prescribing Information |
What changed for J7674
- 2005-01-01: J7674 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 J7674?
J7674 is the HCPCS Level II code for methacholine chloride administered as inhalation solution through a nebulizer, per 1 mg. Short descriptor: "Methacholine chloride, neb".
How much does Medicare pay for J7674?
In 2024, the average Medicare payment was $0.88 per service (average allowed $1.14).
Does Medicare cover J7674?
Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.
How many units of J7674 can be billed per day?
100 on outpatient hospital claims; 100 on practitioner claims (NCCI medically unlikely edits).
Related J76 codes
- J7601 — Ensifentrine, inhalation suspension, fda approved final product, non-compounded, administered through dme, unit dose form, 3 mg
- J7604 — Acetylcysteine, inhalation solution, compounded product, administered through dme, unit dose form, per gram
- J7605 — Arformoterol, inhalation solution, fda approved final product, non-compounded, administered through dme, unit dose form, 15 micrograms
- J7606 — Formoterol fumarate, inhalation solution, fda approved final product, non-compounded, administered through dme, unit dose form, 20 micrograms
- J7607 — Levalbuterol, inhalation solution, compounded product, administered through dme, concentrated form, 0.5 mg
- J7608 — Acetylcysteine, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, per gram
- J7609 — Albuterol, inhalation solution, compounded product, administered through dme, unit dose, 1 mg
- J7610 — Albuterol, inhalation solution, compounded product, administered through dme, concentrated form, 1 mg
- J7611 — Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, concentrated form, 1 mg
- J7612 — Levalbuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, concentrated form, 0.5 mg
- J7613 — Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg
- J7614 — Levalbuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 0.5 mg
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 J7674
- Watch J7674 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for J7674
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.