Child's Insurance Claim Denied? How to Appeal for Your Child

When an insurance claim for your child's medical care is denied, the stakes feel different — and they often are. Children have distinct legal protections under federal law that do not apply to adults, including the EPSDT benefit for Medicaid and CHIP members, the ACA's pediatric Essential Health Benefits mandate, and specific protections under Mental Health Parity Act (MHPAEA) Explained" class="auto-link">MHPAEA for behavioral health services. Whether the denial is for pediatric therapy, specialist care, surgery, a prescription drug, or behavioral health treatment, parents have powerful rights to fight back. This guide explains how to appeal insurance denials for children and the protections unique to pediatric care.

Why Insurance Claims for Children Are Denied

Pediatric insurance denials follow several common patterns, each with federal legal authority available to challenge them:

• Pediatric therapy visit limits — Plans may cap physical therapy, occupational therapy, or speech therapy visits per year even when medically necessary for developmental delays (ICD-10: F80–F89), autism spectrum disorder (F84.0), cerebral palsy (G80.x), or post-surgical rehabilitation. The ACA's Essential Health Benefits mandate covers rehabilitative and habilitative services without arbitrary dollar or visit limits for plans subject to EHB requirements.
• "Not medically necessary" for pediatric specialist care — Denials for pediatric neurology, developmental pediatrics, pediatric cardiology, or other specialty referrals citing lack of documented medical necessity. These are frequently based on insufficient documentation in the referral rather than genuine clinical disagreement.
• Behavioral health denials — Denials for ABA therapy (for autism), child psychiatry, or behavioral counseling. Under MHPAEA (29 U.S.C. §1185a) and 42 CFR Part 438 Subpart K, behavioral health benefits for children must be subject to no more restrictive limitations than comparable medical/surgical benefits.
• EPSDT denials for Medicaid and CHIP children — For children covered by Medicaid or CHIP, the EPSDT (Early and Periodic Screening, Diagnostic, and Treatment) benefit under 42 U.S.C. §1396d(r) is among the strongest coverage mandates in US health insurance law. It requires coverage of any service medically necessary to correct or ameliorate the child's condition — regardless of whether that service is generally covered for adults.
• Pre-existing condition denials — Under the ACA (42 U.S.C. §300gg-3), health plans cannot deny coverage or charge higher premiums for children based on pre-existing conditions. Denials citing pre-existing conditions for covered children in non-grandfathered plans are unlawful.
• Pediatric dental and vision exclusions — Pediatric dental and vision care are ACA Essential Health Benefits for individual and small group plans. Denials that amount to categorical exclusions of these EHBs in non-grandfathered plans are legally vulnerable.

How to Appeal

Step 1: Identify the Legal Framework Governing Your Child's Plan

Determine whether your child is covered by: (a) a state-regulated ACA marketplace or fully insured employer plan — subject to state insurance law, ACA EHBs, and MHPAEA; (b) a self-funded ERISA employer plan — subject to ERISA and MHPAEA but not state insurance mandates; (c) Medicaid or CHIP managed care — subject to federal Medicaid law including EPSDT (42 U.S.C. §1396d(r)) and MHPAEA; or (d) FEHB — the federal employee benefit framework. The applicable legal framework determines which arguments are available.

Step 2: Get Your Child's Physician's Letter of Medical Necessity

The treating pediatric specialist's letter is the most important document. It must state the ICD-10 diagnosis code (e.g., F84.0 for ASD, G80.0 for spastic cerebral palsy, F80.1 for expressive language disorder, Q21.0 for congenital heart defects), the specific service or treatment requested with the CPT code, the clinical rationale explaining why the service is medically necessary for this child's specific condition, and the applicable clinical guideline — AAP guidelines, AASM pediatric guidelines, AHA/ACC congenital heart disease guidelines, or other relevant professional society guidance.

Step 3: Invoke the EPSDT Benefit for Medicaid and CHIP Children

If your child is covered by Medicaid or CHIP, cite 42 U.S.C. §1396d(r) in your appeal. EPSDT requires the state Medicaid program and its managed care organizations to cover any service that is: (1) medically necessary, (2) to correct or ameliorate a physical or mental condition, and (3) recognized under federal Medicaid law. EPSDT specifically covers services that may not be covered for adults. State explicitly: "Under 42 U.S.C. §1396d(r), this child is entitled to coverage of all services medically necessary to correct or ameliorate [the child's diagnosed condition]. This denial fails to apply the EPSDT standard."

Step 4: Cite MHPAEA for Behavioral Health Denials

For ABA therapy, child psychiatry, behavioral counseling, or substance use disorder treatment denials, invoke MHPAEA (29 U.S.C. §1185a) and 42 CFR §438.900 for Medicaid managed care. State that the plan cannot apply more restrictive Prior Authorization Denied: How to Appeal" class="auto-link">prior authorization, visit limits, or medical necessity criteria to behavioral health services than it applies to comparable medical or surgical services. Request the plan's criteria for comparable medical services for comparison.

Step 5: File the Internal Appeal Within the Deadline

Submit a written appeal under ACA §2719 (42 U.S.C. §300gg-19) within 180 days of the denial for non-urgent matters. For Medicaid and CHIP, the appeal deadline is governed by state Medicaid rules — typically 60 days under 42 CFR §438.408. Include the physician's letter, ICD-10 and CPT codes, clinical guideline citations, EPSDT authority for Medicaid/CHIP members, and MHPAEA authority for behavioral health denials.

Step 6: Request External Independent Review: Complete Guide" class="auto-link">External Review or State Fair Hearing

If the internal appeal fails, request independent external review for commercial plan members. For Medicaid and CHIP members, request a State Fair Hearing under 42 CFR §431.220 — an independent administrative hearing before a state administrative law judge. Also consider filing a complaint with your state insurance commissioner (for commercial plans) or with your state Medicaid agency.

What to Include in Your Appeal

• Denial letter and EOB with the specific denial reason, criteria cited, and ICD-10 and CPT codes involved
• Treating pediatric specialist's letter of medical necessity with diagnosis code, treatment rationale, and clinical guideline citations (AAP, AASM, or other relevant society guidelines)
• EPSDT citation (42 U.S.C. §1396d(r)) for Medicaid and CHIP members — with documentation of medical necessity to correct or ameliorate the child's condition
• MHPAEA citation (29 U.S.C. §1185a) for behavioral health and ABA therapy denials
• Pre-existing condition protections citation (42 U.S.C. §300gg-3) if the denial is based on a pre-existing condition

Fight Back With ClaimBack

Pediatric insurance denials often overlook the EPSDT benefit for Medicaid children, the MHPAEA parity requirement for behavioral health, and the ACA's prohibition on pre-existing condition exclusions for children. When these legal authorities are cited alongside complete clinical documentation from the treating pediatric specialist, denials are reversed on internal appeal and at state fair hearings. ClaimBack generates a professional, pediatric-specific appeal letter in 3 minutes.

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Related Reading

• How to Write an Insurance Appeal Letter
• What Is Medical Necessity?
• Internal vs External Insurance Appeal