PSC Q601: Medical Coding and Auditing
Q601 is the product and service code (PSC) federal agencies use for “Medical Coding and Auditing”, in the “Certified Medical Support” group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 0
- Federal contract spending, FY2025
- $30.4 million
- Share of contract dollars to small businesses, since FY2024
- 50%
Open count as of Oct 28, 2026, 8:02 PM ET. The search counts live, so its total can differ by a notice or two.
Where Q601 sits in the PSC Manual
- Category: Service
- Group Q: Medical Services
- Group Q6: Certified Medical Support
- Code Q601: Medical Coding and Auditing
NAICS codes used with PSC Q601
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with Q601 most often:
| NAICS | Industry | Spent, last 3 years | Open with PSC Q601 |
|---|---|---|---|
| 621111 | Offices of Physicians (except Mental Health Specialists) | $48.4 million | — |
| 541611 | Administrative Management and General Management Consulting Services | $31.7 million | — |
| 621999 | All Other Miscellaneous Ambulatory Health Care Services | $23.1 million | — |
| 541219 | Other Accounting Services | $22.7 million | — |
| 541511 | Custom Computer Programming Services | $16 million | — |
| 524291 | Claims Adjusting | $5.9 million | — |
Open contracts under each code, with any PSC: NAICS 621111 · NAICS 541611 · NAICS 621999 · NAICS 541219 · NAICS 541511 · NAICS 524291
Who buys under PSC Q601
Agencies with the most contract dollars under Q601 over the last three fiscal years, per USAspending.gov. Each name links to that agency's open contracts and buying history:
| Agency | Obligated |
|---|---|
| Defense Health Agency | $86 million |
| Department of Veterans Affairs | $25.8 million |
| Federal Acquisition Service (GSA) | $21.5 million |
| Federal Prison System / Bureau of Prisons | $8.6 million |
| Centers for Medicare and Medicaid Services | $7.3 million |
| Department of the Army | $6.1 million |
| Indian Health Service | $4.7 million |
| Consumer Product Safety Commission | $2 million |
Federal spending under PSC Q601 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $41.1 million |
| FY2025 | $30.4 million |
| FY2026 (incomplete) | $89.1 million |
Headline figures use FY2025, the last complete year. FY2026 is still incomplete and will rise until about early January 2027 as Defense data arrives: USAspending.gov publishes Defense contracts 90 days after they're signed.
Who wins PSC Q601 contracts
| Company | Obligated, last 3 years |
|---|---|
| Decypher Health Services, LLC | $48.1 million |
| Arapaho Technical Services LLC | $17.6 million |
| Integrated Management Strategies LLC | $13.7 million |
| Serco Inc | $10.8 million |
| Science Applications International Corporation | $10.7 million |
| Cooper Thomas LLC | $9.1 million |
| Varetis, Inc. | $8.6 million |
| Health Partner's Management Group, Incorporated | $8.5 million |
| SIERRA7, Inc. | $6.5 million |
| Maxim Healthcare Services, Inc. | $6.1 million |
Linked names have a FedReady profile, which shows the NAICS codes a business is registered as small under. Most large companies have none.
Large prime contractors (companies that hold the contract with the agency) subcontract part of their work to small businesses. See which primes subcontract, by NAICS code.
Research PSC Q601 work
By the NAICS codes this work goes with, the one with the most spending first: who won recently, contracts ending soon, agencies' planned buys and the large primes that subcontract it, nationwide. Each code shows only the pages that exist for it:
- 621111 Offices of Physicians (except Mental Health Specialists): who won recently · planned buys · large primes that subcontract. Not available for 621111 yet: contracts ending in the next 12 months. Its NAICS page shows who buys it.
- 541611 Administrative Management and General Management Consulting Services: who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
- 621999 All Other Miscellaneous Ambulatory Health Care Services: who won recently · planned buys · large primes that subcontract
Related PSC codes
Frequently asked questions
What is PSC Q601?
Q601 is the service code in the federal Product and Service Code (PSC) Manual named “Medical Coding and Auditing”, under Q (Medical Services) and Q6 (Certified Medical Support). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC Q601?
Most federal contract dollars under PSC Q601 go with NAICS 621111 (Offices of Physicians (except Mental Health Specialists)), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC Q601?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. FedReady can match new ones to your business and email you, free.
Keep going
Sources: SAM.gov Contract Opportunities, USAspending.gov and the PSC Manual. How we count.