Are there any factors that determine whether ketamine infusion treatment will or won’t be covered by insurance?

The coverage of ketamine infusion treatment by insurance companies varies depending on several factors. Insurance policies change from time to time depending on the carrier and plan. Some general factors that can influence whether ketamine infusion treatment is covered by insurance include:

1. Insurance provider: Different insurance companies may have different policies regarding the coverage of ketamine infusion treatment. Some may cover it, while others may not. This also depends upon the condition being treated. 
2. Diagnosis: Insurance companies typically require a specific diagnosis from a healthcare provider to cover ketamine infusion treatment. It is more likely to be covered if it is prescribed for indications proven by a significant amount of research, such as depression, suicidal ideation, or chronic pain.
3. Treatment guidelines: Some insurance providers may require that patients undergo other treatments, such as therapy or medication before they cover ketamine infusions. This is often referred to as "step therapy" or "fail-first" policies.
4. Medical necessity: Insurance companies may require documentation to prove that ketamine infusion treatment is medically necessary for a patient. This can include medical records, treatment history, and letters from healthcare providers.
5. Prior authorization: Certain insurance providers may require prior authorization before covering ketamine infusion treatments. This means that a healthcare provider needs to request and obtain approval from the insurance company before treatment can begin.

Example: A patient diagnosed with treatment-resistant depression (TRD) might be eligible for insurance coverage of ketamine infusion treatments. Their insurance provider might require that they have tried and failed to respond to at least two other antidepressant medications before considering ketamine as a covered option. The patient's healthcare provider would need to submit documentation of the patient's diagnosis, treatment history, and medical necessity for ketamine infusion. If approved, the insurance provider may cover the treatment, subject to any copayments, deductibles, or other cost-sharing requirements.

Please consult with your insurance provider and healthcare provider to determine the specific coverage and requirements for ketamine infusion treatment in your case. While this is a rapidly evolving area, ketamine for mental health is generally considered "experimental" by insurers and, therefore, a non-covered service. In some cases, patients with a good PPO and out-of-network benefits may receive partial reimbursement after reaching their deductible and submitting claims for reimbursement.