Billing Health First Colorado without checking the current fee schedule is how practices end up under-collecting on services they’ve already delivered.
The HCPF fee schedule changes throughout the year — some categories revised more than once annually — and providers billing off an outdated table lose the difference quietly, claim by claim.
We’ll go into further detail, exploring:
- Current reimbursement rates and recent updates
- How the Colorado Medicaid fee schedule works
- Common Health First Colorado billing mistakes
- Best practices to maximise reimbursement
- HCBS rates and specialty billing rules
- FFS vs. RAE billing pathways
TLDR: Colorado Medicaid fee schedule
- The Colorado Medicaid fee schedule is published and updated by HCPF, with some categories revised multiple times per year
- Health First Colorado pays the lower of your billed charge or the Medicaid allowable rate
- Providers must bill usual and customary charges, not pre-discounted amounts
- FFS and RAE-administered services use different payment pathways
- HCBS rates follow their own separate schedule by waiver program
- A 1.6% across-the-board rate increase took effect July 1, 2025
- Behavioral Health Secure Transportation moved to RAE capitation in July 2025
What is Health First Colorado and who administers it?
Health First Colorado is Colorado’s Medicaid program, administered by the Colorado Department of Health Care Policy & Financing (HCPF) and covering more than 1.8 million residents.
Coverage flows through two pathways — Fee-for-Service and the Accountable Care Collaborative (ACC), which is run through Regional Accountable Entities (RAEs).
Colorado’s model isn’t a traditional Medicaid MCO structure.
RAEs coordinate care in ways similar to managed care, but treating RAE billing rules as identical to commercial managed care will cause avoidable errors. The RAE relationship is specific to Colorado’s ACC framework, and the billing rules reflect that.
How does the fee schedule actually work?
The core rule behind every Health First Colorado claim is simple — but it trips up providers who bill their usual rates expecting Medicaid to match them.
Bill usual and customary charges
HCPF requires providers to submit their standard charge, not a discounted amount.
- Bill the same charge you’d submit to any other payer
- Don’t subtract expected Medicaid payment before billing
- Don’t reduce charges based on anticipated copayments
How reimbursement is calculated
Health First Colorado pays whichever amount is lower — your billed charge or the Medicaid allowable rate. Providers must accept the Medicaid allowable as payment in full for covered services, and balance billing above the allowance generally isn’t permitted.
In practice, billing below your usual charge caps your reimbursement lower than the Medicaid allowable — for no benefit. A practice that normally charges $220 for a service with a $164 Medicaid allowable gets $164. But if that practice bills $150 (trying to “match” Medicaid), it gets $150 — $14 less than it was entitled to.
Fee schedule update frequency
Different HCPF fee schedules update on different cycles — there’s no single rule for every category.
| Fee schedule category | Typical update frequency | Where published |
| General FFS | At least annually, often mid-year revisions | HCPF Provider Rates page |
| Behavioral health rates | Annually, per SBHS manual | HCPF Behavioral Health billing manual |
| HCBS rates | Program-specific, varies by waiver | HCPF HCBS rate schedules |
| Laboratory services | Annually | HCPF Laboratory Services manual |
A 1.6% across-the-board rate increase took effect July 1, 2025, covering most FFS benefit categories. Practices billing off a rate sheet from before that date are underpaid on every claim.
How do FFS and RAE billing pathways differ?
Not every Health First Colorado service pays out the same way, and picking the wrong pathway is a common denial source.
Fee-for-service claims
FFS claims go directly to HCPF through Colorado interChange.
- Reimbursement follows the standard fee schedule
- Most physical health, primary care, and specialty services
- Eligibility should be verified before every encounter (coverage shifts monthly)
RAE-administered services
Certain benefits route through the Regional Accountable Entity instead of direct FFS.
- Most behavioral health services for Health First Colorado members
- Behavioral Health Secure Transportation (moved to RAE capitation July 2025)
- Confirm RAE contracting status before submitting — payment routes differently than FFS
The billing team needs to know which pathway applies before submitting.
Sending a behavioral health claim through FFS when it should route through the RAE produces a denial. Sending a physical health claim to the RAE when it’s a standard FFS service produces the same result in the opposite direction.
How do HCBS rates work in Colorado?
Home- and Community-Based Services rates follow a separate structure from the general FFS fee schedule, and providers billing HCBS for the first time often assume the standard rates apply — they don’t.
- HCBS rates are set per waiver program, not a single statewide table
- Rates are published in program-specific schedules on the HCPF site
- Confirm the specific waiver (EBD, CES, SLS, or others) before checking rates
- HCBS rate updates don’t necessarily follow the same annual cycle as general FFS
How should you bill CPT and HCPCS codes to Health First Colorado?
CPT and HCPCS codes are the foundation of every claim, but Colorado layers its own manuals, modifiers, and prior authorization rules on top of the national code set.
Follow the specialty billing manual
HCPF maintains separate manuals for laboratory, behavioral health, dental, pharmacy, HCBS, and other categories.
- Each manual specifies required modifiers and documentation
- Ordering/referring provider NPI is required on applicable PT/OT claims
- Missing required NPI fields generally leads to claim rejection
Confirm prior authorization
Some CPT and HCPCS codes require a Prior Authorization Request (PAR) before payment.
- Drug authorization criteria are published separately
- Check Appendix M of the billing manuals for PAR-required procedures
- Claims without required authorization are denied even when the code itself is covered
What are the most common Colorado Medicaid billing mistakes?
Most Health First Colorado denials trace back to a handful of repeat errors rather than complex coding problems.
- Billing off an outdated printed fee schedule instead of checking HCPF’s current rates
- Applying general managed-care assumptions to Colorado’s ACC/RAE structure
- Missing the ordering/referring provider NPI on PT/OT claims
- Treating RAE-administered services as standard FFS claims
- Submitting claims without confirming PAR requirements
The last point deserves emphasis. Colorado’s Medicaid structure is not a standard MCO model. Billing teams that import commercial managed care assumptions into their Health First Colorado workflows create errors that are specific to Colorado’s ACC framework and invisible until the denials arrive.
Billing Health First Colorado without the guesswork
Keeping up with HCPF’s rolling fee schedule updates, RAE routing rules, and specialty-specific manuals is a full-time job on top of seeing patients. MedHeave tracks Colorado Medicaid changes directly so your claims go out against current rates the first time.
- Performance-based pricing with no lock-in
- PAR and modifier compliance review by specialty
- FFS vs. RAE routing verification before claim submission
- Denial tracking specific to Health First Colorado billing rules
- Fee schedule monitoring across FFS, behavioral health, and HCBS categories
Contact us if your Colorado Medicaid claims need a rate and workflow check.
Related guides & resources
The resources below cover closely related topics and the broader service workflow they connect to:
- Medical billing services — Medical billing services
- HIPAA compliance in medical billing — HIPAA Compliance in Medical Billing: All you need to know
- Medicaid billing for providers — Medicaid Billing as a Provider: Enrollment, Claims, & Reimbursement
- ABN — ABN in Medical Billing: Rules, Modifiers & Liability
- Clean claims — Clean Claim Explained in Medical Billing Context
- Medical billing — Beginner’s Guide to Medical Billing and Coding
- Maximize revenue — Proactive Medical Billing Tips to Maximize Revenue
Frequently asked questions
Here are some commonly asked questions on this topic:
HCPF publishes and updates provider fee schedules on its Provider Rates and Fee Schedule page, with some categories revised multiple times per year. Different service categories (general FFS, behavioral health, HCBS, laboratory) update on different cycles, so checking the date on any fee schedule you’re using is essential. A 1.6% across-the-board increase took effect July 2025 for most FFS categories — rates printed before that date are outdated.
Health First Colorado pays the lower of your billed charge or the Medicaid allowable rate. Providers should always bill their usual and customary charges — the same amount they’d bill any other payer. Billing below your standard charge caps reimbursement lower than the Medicaid allowable, costing revenue for no reason. The Medicaid allowable rate is payment in full for covered services, and balance billing above that amount generally isn’t permitted under Colorado Medicaid rules.
FFS claims go directly to HCPF through Colorado interChange and cover most physical health, primary care, and specialty services. Certain services — mainly behavioral health — route through a Regional Accountable Entity instead. Behavioral Health Secure Transportation moved to RAE capitation in July 2025. Confirm RAE contracting status before submitting, because sending a behavioral health claim through FFS (or vice versa) produces a denial specific to Colorado’s ACC structure.
HCBS rates are published per waiver program on the HCPF website rather than in the general FFS fee schedule. Confirm the specific waiver (EBD, CES, SLS, or others) before checking rates, because each waiver has its own rate structure and update cycle. HCBS rate updates don’t necessarily follow the same annual cycle as general FFS — some waiver programs update rates independently based on program-specific factors and legislative changes.
No. Health First Colorado is Colorado’s state Medicaid program, administered by the Colorado Department of Health Care Policy & Financing (HCPF). Healthfirst is a separate, unrelated health insurance plan operating primarily in New York. The names are similar enough to cause confusion in online searches, but they are different organizations serving different states with no administrative connection to each other.
