The Oklahoma medical necessity form, officially the HCA-12A Prior Authorization form issued by the Oklahoma Health Care Authority (OHCA), is what a SoonerCare-contracted provider completes to justify durable medical equipment, supplies, or certain services for a SoonerCare member. The completed form goes in with a prior authorization request before any supplier can bill SoonerCare for the item.
Where to Get the Form and Who Can Start It
The HCA-12A is available on the OHCA prior authorization page under provider resources, and through the SoonerCare Provider Portal at soonercareproviderportal.com.1Oklahoma Health Care Authority. Prior Authorization Only a SoonerCare-contracted provider can order or prescribe the equipment. A treating clinician who does not hold a SoonerCare contract cannot initiate the request, even if they know the member’s condition best.2Oklahoma Health Care Authority. OAC 317:30-5-211.2 Medical Necessity
What to Enter on the Form
The HCA-12A pulls together three things: who the member is, what is clinically wrong, and what the provider is asking SoonerCare to cover. Type the entries. Handwritten forms slow review and often come back with requests for clarification, which resets the processing clock.
Member and Provider Identification
Enter the member’s full legal name and their nine-character SoonerCare identification number exactly as it appears on the SoonerCare card.3Oklahoma Health Care Authority. Provider Billing and Procedures Manual One transposed digit can get the submission rejected or routed to the wrong member record. The ordering provider’s individual ten-digit National Provider Identifier (NPI) must also appear on the form.
Diagnosis, Equipment Codes, and Narrative
Record the diagnosis using current ICD-10 codes that match the condition making the equipment necessary. Identify the requested items with Healthcare Common Procedure Coding System (HCPCS) codes, and make sure the codes and diagnoses line up logically. Mismatches between the diagnosis and the equipment code are one of the most common reasons reviewers flag submissions.
The clinical narrative carries the weight of the request. Explain why this member’s specific condition requires this particular item, and why a less costly or less specialized alternative would not work. If the ask is a power wheelchair, the narrative needs to say why a manual wheelchair or a walker won’t meet the mobility need.
Duration and Supporting Measurements
State how long the member will need the equipment, in months. That can be a single month for a short-term recovery item or a lifetime duration for a permanent condition. Some equipment categories require specific objective data: blood gas levels for oxygen therapy, height and weight for nutritional supplements, and similar measurements that back up the narrative.
The Face-to-Face Encounter
Before completing the CMN, the ordering provider must conduct and document a face-to-face assessment related to the primary reason the member needs the equipment. The encounter must happen no more than six months before services start. The record has to show who conducted the encounter, the date, and the clinical findings, and it must live in the member’s medical file. Telehealth counts; an in-person visit is not required.4Oklahoma Health Care Authority. DME Changes Effective Aug. 1, 2020
Signing the Form
The CMN must be signed by the treating physician, a non-physician practitioner, or a dentist. For prescriptions specifically, the authorized signers are physicians, physician assistants, and advanced practice registered nurses.2Oklahoma Health Care Authority. OAC 317:30-5-211.2 Medical Necessity The supplier must have the signed CMN on file before submitting any claim for payment.
The signature must be handwritten or an approved secure electronic signature. A typed name alone will not satisfy the requirement. The signature date should line up with the clinical evaluation or review that supports the request. Signatures dated well after the equipment was requested draw scrutiny during audits because they suggest the certification was completed retroactively.
Prescriptions for medical equipment and supplies are valid for no more than one year from the date written.2Oklahoma Health Care Authority. OAC 317:30-5-211.2 Medical Necessity Hearing aid batteries and equipment repairs costing less than $1,000 in total parts and labor are the one exception; they do not require a prescription.
What SoonerCare Will Not Cover
Oklahoma’s administrative code excludes several categories regardless of diagnosis. Equipment used for routine personal hygiene, education, exercise, convenience or restraint, sports participation, or cosmetic purposes is not a covered benefit for any SoonerCare member.2Oklahoma Health Care Authority. OAC 317:30-5-211.2 Medical Necessity A CMN submitted for an item in one of these categories will be denied no matter how strong the clinical justification.
How to Submit the Completed Form
Most providers submit through the SoonerCare Provider Portal at soonercareproviderportal.com. The portal generates an immediate confirmation and allows real-time status tracking.
For DME prior authorization requests that cannot go through the portal, the OHCA Medical Authorization Unit handles submissions. The DME unit can be reached by email at DMEAdmin@okhca.org.5Oklahoma Health Care Authority. Medical Authorization Unit (MAU) Fax submissions need a clear cover sheet listing the provider’s name, NPI, phone number, and the member’s SoonerCare ID. The unit processes a high volume of requests daily, and cover sheets without identifying details end up in a queue unmatched to a case.
After You Submit
OHCA assigns a tracking number to the prior authorization request. If approved, the provider receives an authorization number that the supplier uses to bill SoonerCare. Without that number, the supplier cannot be paid.
Processing times vary with the equipment type and how complete the submission is. Incomplete forms or missing clinical documentation trigger a request for additional information, which pauses the review until the provider responds. Before submitting, confirm that the diagnosis codes, HCPCS codes, clinical narrative, and supporting measurements all tell the same story.
Annual Review and Record Retention
For long-term equipment needs, the CMN is not a one-time document. The plan of care that includes the equipment must be reviewed annually by the ordering provider.2Oklahoma Health Care Authority. OAC 317:30-5-211.2 Medical Necessity If the member’s condition changes or the equipment is no longer appropriate, the documentation has to be updated.
Providers must retain all documentation related to the CMN and the services furnished for six years, and must make those records available to the U.S. Department of Health and Human Services upon request.6Oklahoma Health Care Authority. OAC – Record Retention Discarding records inside that six-year window leaves the provider unable to defend a claim in a post-payment audit.
If the Request Is Denied
When a CMN-based prior authorization is denied, the member or their legal guardian has thirty calendar days from the denial notice to appeal. The appeal is filed on an LD-1 (Member Complaint/Grievance Form) with OHCA, and it must be complete with supporting documentation; an incomplete LD-1 will not be heard.7Legal Information Institute. Oklahoma Administrative Code 317:2-1-2 – Appeals
OHCA schedules a fair hearing before an administrative law judge. The default format is a telephone hearing. A member who wants an in-person hearing must submit a written request on OHCA Form LD-4 at least ten calendar days before the scheduled hearing date. The member or their authorized representative must appear; if no one shows, the appeal is not decided in the member’s favor. Missing the thirty-day filing window is effectively fatal, and the ALJ will issue a letter stating the matter will not be heard.