Colorado Medicaid billing requires more than selecting a CPT code and submitting a claim. Healthcare providers must confirm procedure coverage, reimbursement rules, billing units, modifiers, provider eligibility, and documentation requirements before expecting payment.
The Medicaid Colorado CPT Code and Billing Chart helps medical practices identify billable services and understand how Colorado Medicaid processes reimbursement. However, using an outdated fee schedule or overlooking a service-specific billing requirement can result in rejected claims, denied payments, or incorrect reimbursement.
Colorado’s Medicaid program, known as Health First Colorado, is administered by the Colorado Department of Health Care Policy and Financing (HCPF). The department publishes provider billing manuals, fee schedules, and operational guidance for participating providers.
This guide explains how to interpret the Colorado Medicaid CPT code billing chart, verify reimbursement information, avoid common coding errors, and correct claims that fail processing.
What is the Medicaid Colorado CPT code and billing chart?
The Colorado Medicaid CPT code billing chart refers to the procedure-code and reimbursement information published for services covered under Health First Colorado.
Providers use these resources to identify the appropriate CPT or HCPCS codes, review published payment allowances, and determine whether additional billing requirements apply.
The official Colorado Medicaid fee schedule is particularly useful for fee-for-service claims. It provides reimbursement information for different categories of medical services, although coverage and payment cannot always be determined from the listed amount alone.
For example, a CPT code may appear on a fee schedule but still require prior authorization, a specific modifier, an eligible provider type, or documentation supporting medical necessity.
Providers should therefore use the applicable billing manual alongside the fee schedule rather than treating the reimbursement chart as a complete coverage policy.
Colorado Medicaid CPT code billing chart for common medical services
The following chart presents commonly used CPT codes across outpatient medical services. It is an educational coding reference, not an official Colorado Medicaid reimbursement table.
CPT code | Procedure description | Common billing consideration |
99202 | New patient office visit, level 2 | Medical decision-making or qualifying time |
99203 | New patient office visit, level 3 | Documentation supporting visit level |
99204 | New patient office visit, level 4 | Appropriate E/M code selection |
99212 | Established patient office visit, level 2 | Medical necessity and visit documentation |
99213 | Established patient office visit, level 3 | Correct E/M level |
99214 | Established patient office visit, level 4 | Medical decision-making or time |
90832 | Individual psychotherapy, 30 minutes | Psychotherapy time and provider eligibility |
90834 | Individual psychotherapy, 45 minutes | Documented psychotherapy duration |
90837 | Individual psychotherapy, 60 minutes | Time requirements and payer policy |
97110 | Therapeutic exercises | Timed units and therapy documentation |
92507 | Individual speech, language, or communication treatment | Provider eligibility and service-specific rules |
93000 | Routine ECG with interpretation and report | Professional and technical component requirements |
Code descriptions are abbreviated. Verify the current CPT descriptors, Health First Colorado coverage, modifiers, and effective-date fee schedules before submitting claims.
How to interpret the Colorado Medicaid billing chart
A procedure code identifies the service performed, but it does not independently establish that the service is payable.
For instance, CPT 97110 represents therapeutic exercises. Billing staff must also evaluate the treatment duration, unit calculation, provider qualifications, and any applicable authorization requirements.
Similarly, psychotherapy codes 90832, 90834, and 90837 distinguish services by psychotherapy duration. Reporting a higher-duration code without supporting documentation creates a coding compliance risk.
For office visits, CPT 99213 and 99214 represent different levels of established-patient evaluation and management services. Code selection generally depends on medical decision-making or total qualifying time, rather than the number of diagnoses documented.
How to check the Colorado Medicaid fee schedule
Colorado Medicaid fee schedules are published by HCPF and may be revised when reimbursement policies, procedure codes, or payment methodologies change.
Providers looking for a Colorado Medicaid reimbursement chart PDF should begin with the official Health First Colorado provider resources.
The review process should include identifying the applicable service category, opening the fee schedule, locating the procedure code, and checking the effective date.
A practice should also confirm whether the claim is being processed under Medicaid fee-for-service or a managed care arrangement. A published fee-for-service amount does not necessarily represent the contracted payment for every managed care provider.
How are Colorado Medicaid reimbursement rates determined?
Colorado Medicaid CPT reimbursement rates depend on the state’s applicable payment methodology and service category.
Depending on the service, payment may be affected by the procedure code, modifiers, billing units, provider qualifications, setting, and applicable reimbursement policy.
Consider a hypothetical service billed at $150 when the applicable Medicaid allowed amount is $90. The billed charge does not automatically determine payment. The claim is adjudicated according to the applicable program rules, and the final payment may also be affected by other insurance, claim adjustments, or service limitations.
Billing staff should distinguish between three amounts:
Billed charges represent what the provider submits. Allowed amounts represent the amount recognized under the applicable payment rules. Paid amounts represent what the payer actually reimburses after adjudication.
These figures should be reconciled separately when reviewing Medicaid accounts receivable.
Common mistakes in Colorado Medicaid billing
1. Using outdated CPT codes and fee schedules
One frequent billing mistake involves using procedure codes or reimbursement amounts that no longer apply to the date of service.
CPT codes are updated annually, while Medicaid reimbursement changes may take effect at different points during the year.
For example, a billing system may retain an older reimbursement allowance even after Colorado Medicaid implements a rate adjustment. Although the claim may still process, the practice could calculate its expected reimbursement incorrectly.
HCPF cautions that published fee schedules may not immediately reflect every rate change. Providers should check applicable updates before relying on an amount.
2. Reporting incorrect Medicaid billing units
Incorrect billing units can produce overpayments, underpayments, or denials.
For timed therapy services, the number of billable units must correspond to the applicable coding rules and documented treatment time.
Consider a physical therapy session involving therapeutic exercises. If the provider documents 30 minutes of treatment but the billing team reports units that cannot be supported under the applicable methodology, the claim may require correction.
Documentation should clearly identify the services delivered, treatment duration, and units reported.
3. Missing modifiers or using incorrect modifiers
Modifiers add specific details about a billed procedure. Depending on the service, they may identify a professional component, technical component, distinct service, or another payer-required billing circumstance.
For example, some diagnostic procedures allow separate reporting of professional and technical components. Submitting a global service code when only one component was performed can produce an incorrect claim.
Providers should verify Colorado Medicaid modifier requirements rather than automatically applying modifier rules from Medicare or commercial insurance.
4. Ignoring prior authorization requirements
Certain Health First Colorado services require prior authorization before payment can be issued.
An authorization may specify the approved service, provider, quantity, and treatment period. A claim that falls outside those conditions may be denied.
Importantly, HCPF states that prior authorization approval does not guarantee payment. Eligibility, timely filing, coordination of benefits, and other claim requirements still apply.
5. Incorrect provider enrollment information
Colorado Medicaid billing also depends on accurate provider enrollment records.
A claim can encounter processing problems when the billing provider, rendering provider, taxonomy, or service location does not match the information required by the program.
Practices should confirm that enrollment records remain current, particularly after adding clinicians, changing practice locations, or updating organizational information.
6. Failing to coordinate primary and secondary insurance
Health First Colorado generally operates as a payer of last resort when another liable insurer covers the service.
For patients with commercial insurance or Medicare, billing staff must determine the correct payer order and report primary insurance adjudication information as required.
A common misconception is that Medicaid automatically covers all remaining deductibles, copayments, and coinsurance balances.
Actual secondary payment depends on the applicable Medicaid allowance, other payer payments, and coordination-of-benefits rules.
Colorado Medicaid timely filing limit
For standard Health First Colorado medical claims, the general timely filing requirement is 365 days from the date of service.
HCPF reaffirmed this requirement in its Provider News & Resources publication dated June 16, 2025. The department also explained that claims submitted after the initial filing period may qualify for resubmission provisions when the required conditions are satisfied.
Providers should not assume that submitting a claim to a clearinghouse establishes timely filing. The claim must be received by the appropriate Medicaid claims processor.
Exceptions and separate rules can apply to certain claim categories, Medicare crossover claims, and other circumstances. For example, Colorado’s pharmacy billing manual specifies a different standard filing period for pharmacy claims.
Colorado Medicaid speech therapy billing requirements
Colorado Medicaid speech therapy billing requires attention to procedure selection, treatment documentation, and provider eligibility.
CPT 92507 is commonly used for individual treatment of speech, language, voice, communication, or auditory processing disorders.
However, providers should not assume every speech therapy service can be billed using the same procedure code.
Evaluation services, individual treatment, and other specialized services may require different codes.
Before submitting speech therapy claims, practices should confirm the member’s eligibility, applicable coverage limitations, authorization requirements, and the billing rules for the provider type.
The clinical documentation should outline the patient’s medical needs, treatment provided, progress, and relevant details supporting the claim.
How to correct a denied Colorado Medicaid claim
When Health First Colorado denies a claim, billing staff should review the remittance advice and identify the specific denial reason before taking corrective action.
A denial involving an invalid procedure code requires a different response from one involving missing authorization or inactive member eligibility.
The team should compare the claim against the original documentation, correct any supported errors, and follow the applicable adjustment or resubmission procedure.
For older claims, the original submission date and internal control number may affect whether a resubmission can be accepted.
Repeatedly submitting an unchanged denied claim is unlikely to resolve the underlying issue. A documented denial workflow helps practices identify recurring problems involving coding, eligibility, and payer requirements.
Frequently asked questions
How do you bill Colorado Medicaid?
Providers must maintain appropriate Health First Colorado enrollment, verify member eligibility, select covered procedure codes, and submit claims through an authorized submission method. The applicable billing manual determines additional requirements.
Where can providers find the Colorado Medicaid CPT code billing chart?
The Colorado Department of Health Care Policy and Financing publishes fee schedules and procedure-specific billing guidance through its official provider resources. The fee schedule should be used with the relevant billing manual.
How do you check the Colorado Medicaid fee schedule?
Locate the Health First Colorado fee schedule for the applicable date of service, search for the CPT or HCPCS code, and review the published rate. Confirm modifiers, coverage rules, and subsequent updates separately.
How are Colorado Medicaid reimbursement rates determined?
Reimbursement depends on the applicable payment methodology, procedure code, service category, and billing circumstances. The fee schedule amount may differ from the final adjudicated payment.
What are the common mistakes in Colorado Medicaid billing?
Common mistakes include outdated CPT codes, incorrect units, missing modifiers, incomplete documentation, inaccurate provider enrollment details, and failure to verify prior authorization requirements.
What should providers do if Colorado Medicaid denies a claim?
Review the denial reason, verify the supporting clinical and billing information, and submit the appropriate correction or appeal within the applicable deadline. Maintain records of the original claim and subsequent action.
What is the timely filing limit for Colorado Medicaid claims?
The general deadline for standard Health First Colorado medical claims is 365 days from the date of service. Special claim categories and qualifying exceptions may have different requirements.
Can providers bill Medicaid patients for non-covered services?
Under Colorado policy, providers may bill members for certain genuinely non-covered services when the member was informed in advance and entered into the required written payment agreement. A claim denial does not automatically mean the patient can be charged for a covered service.
How do Medicaid billing units and modifiers work?
Units identify the quantity of service reported, while modifiers communicate additional billing information. Both must follow the applicable procedure-specific rules and be supported by documentation.
How can providers verify whether a CPT code is covered by Colorado Medicaid?
Providers should check the current fee schedule, relevant billing manual, provider eligibility rules, and any prior authorization or benefit limitations. A listed CPT code alone does not guarantee coverage or payment.
Improving Colorado Medicaid billing accuracy
An accurate Medicaid Colorado CPT Code and Billing Chart is a useful starting point for claim preparation, but reliable reimbursement also depends on eligibility verification, correct coding, documentation, authorization, and timely submission.
Medical practices should review fee schedule updates, reconcile expected payments against actual remittances, and investigate repeated denials by procedure code and payer.
Maintaining these controls helps providers identify billing errors before they become unresolved accounts receivable.