Childhood apraxia of speech ICD-10 code: what parents need to know

Last updated 2026-07-09

There's no ICD-10-CM code that spells out "childhood apraxia of speech." The disorder never got its own dedicated code in the system used across the United States.^[1] Clinicians reach for the closest fit instead. Speech-language pathologists most often use F80.0 (phonological disorder) or F80.89 (other developmental disorders of speech and language), while some neurologists lean on R47.01 (dysarthria and anarthria) or R47.89 (other speech disturbances). This matters more than it sounds like it should, because insurers pay based on the code submitted, not the therapy note behind it, and only a licensed SLP can make the actual diagnosis.

Why there's no single code

A neurologist doing a diagnostic workup may reach for R47.01. An SLP writing a therapy plan usually prefers F80.0 or F80.89. Some practices list more than one code on the same claim to paint a fuller clinical picture, and none of these choices is wrong as long as the clinician documents the actual features of CAS: inconsistent errors on consonants and vowels, lengthened transitions between sounds, and off prosody. That's the pattern ASHA lays out in its technical report on the disorder.^[2]

If your child also has autism, the clinician may add F84.0 to the claim. That doesn't cancel the apraxia code, it just fills in the rest of the story for the insurer. Ask your provider which exact code they're using before any claim goes out. You're entitled to know it, and you'll want it on hand the day you need to appeal a denial.

Why the code affects your coverage

Insurers process claims by code, not by the narrative in a therapy note. Whatever code your provider submits decides whether the claim falls into a covered bucket, gets flagged for a medical necessity review, or bounces back denied outright. That's the difference between a $150 self-pay session and a $30 copay.

Most commercial insurers will cover speech therapy for CAS when the file documents it as a medical condition with a neurological basis rather than a purely developmental one. ASHA classifies CAS as a neurological speech motor disorder^[2], and that classification carries weight with plans that exclude "developmental" delays from medical benefits while still paying for therapy tied to neurological conditions. Using R47.01, or pairing a speech code with a neurological cause code like G93.89 (other specified disorders of the brain), can help make the case that therapy is medically necessary rather than elective.

Medicaid works differently. Under the Individuals with Disabilities Education Act, children under age 3 can get speech therapy through Early Intervention regardless of insurance coding, and kids ages 3 to 21 can get it through school-based IEP services.^[3] Neither route requires a specific ICD-10 code to start, though the school still runs its own eligibility evaluation.

Before your child's first session, call your insurer and ask two things: whether your plan covers speech therapy under F80.0 or R47.01, and whether you need a referral or prior authorization. Get the answer in writing, or at least write down the call reference number.

How CAS differs from other speech disorders

Childhood apraxia of speech is a motor speech disorder: the brain struggles to plan and program the precise movements the mouth, tongue, and jaw need to make speech sounds. The muscles themselves aren't weak, which separates CAS from dysarthria, and the child usually understands language fairly well, which separates it from a broad language delay.^[2]

ASHA's 2007 technical report names three core diagnostic features: inconsistent errors on consonants and vowels across repeated tries at the same syllable or word, lengthened and disrupted transitions between sounds and syllables, and off prosody, especially in word or phrase stress.^[2] A child who says "bah-nah-nah" for banana one time and "duh-nah-pah" the next is showing exactly the inconsistency that marks CAS.

Late talkers often get lumped into one group, but CAS is a specific motor diagnosis, not a slot in that category. A child who's simply slow to add words may catch up without heavy intervention. A child with CAS usually doesn't catch up on their own and needs frequent, motor-learning-based therapy, often three to five sessions a week in the early stages.^[4] Our full article on childhood apraxia of speech walks through what a proper evaluation looks like and which therapy approaches have the strongest evidence behind them.

It's also worth separating CAS from a phonological disorder, since the two can travel together but aren't the same thing. A phonological disorder follows a rule-based pattern, like always dropping final consonants. CAS produces errors that shift even when the child tries the same word twice in a row. Treating the two the same way is a mistake.

Who can actually diagnose it

Only a licensed speech-language pathologist can diagnose childhood apraxia of speech. Pediatricians can and should screen for speech concerns and refer out, but a pediatrician's note that reads "possible apraxia" isn't a clinical diagnosis and won't hold up for insurance coding.^[5]

A proper evaluation includes a standardized assessment of speech sound production, a dynamic motor speech evaluation (watching how the child handles repeated and varied syllable sequences), an oral mechanism exam, and a language assessment. The Kaufman Speech Praxis Test for Children and the Dynamic Evaluation of Motor Speech Skills (DEMSS) are two tools SLPs reach for often, though neither settles the question on its own.

Diagnosis is genuinely hard under age 3, and ASHA accepts that a "suspected" or "working" diagnosis of CAS is appropriate for very young children when full certainty isn't possible yet.^[2] That matters, because you shouldn't wait for certainty before starting therapy. A suspected diagnosis still qualifies a child for services and still supports insurance billing.

Look for an SLP with real motor speech experience. Apraxia Kids keeps a directory of providers who've identified themselves as having CAS expertise, and not every community speech therapist has that background, which affects how well the diagnosis actually gets made. For more on picking an SLP and how the evaluation process runs, see our guide on speech therapy and speech therapists.

What the codes mean in plain terms

The code on your child's chart is whichever one the evaluating SLP decides best matches the clinical picture, backed by detailed narrative notes.^[1] You can't pick the code yourself, and you shouldn't try, but you can ask your SLP which one they chose, why, and whether the documentation names childhood apraxia of speech outright even when the billing code itself is a broader category.

That naming detail matters most in appeals. If your insurer denies a claim, a file with the evaluation report naming CAS, the three diagnostic criteria, and the SLP's credentials gives you something to stand on. Denials of speech therapy for a diagnosed neurological disorder get reversed on appeal more often than most parents expect, as long as the records are complete.

None of this replaces advice from your child's own SLP or doctor, who can look at the actual chart and tell you what applies to your situation.

Does a CAS diagnosis mean my child automatically qualifies for an IEP or early intervention?

Not automatically, but usually yes. Early Intervention, the federally funded program for children birth to age 3, runs on eligibility criteria set by each state, though every state has to follow IDEA Part C. A CAS diagnosis from a qualified professional almost always establishes eligibility for EI speech therapy services.^[3]

For children ages 3 through 21, school districts must provide a free appropriate public education when a disability affects educational performance. CAS counts as a speech or language impairment under IDEA Part B, and the IEP team, which includes you, decides what services fit. School-based speech therapy for CAS usually runs one to three times a week, which is often too little for a child with moderate to severe CAS who needs daily motor practice, so plenty of families add private therapy on top.

An ICD-10 code on a diagnosis letter helps when you bring documentation to the school, but the school runs its own evaluation and cannot lean only on outside paperwork. You can request a school evaluation in writing, and once you do, the school has 60 days in most states to finish it.^[3] Our article on early intervention walks through how to reach Part C services and what to do when your state's intake feels slow.

How common is CAS, really?

Estimates vary a lot, because CAS has been both overdiagnosed and underdiagnosed depending on where a child gets seen. The number you'll see most often is 1 to 2 children per 1,000, or roughly 0.1 to 0.2 percent. ^[4] Some researchers put it higher, around 3.4 per 1,000, using tighter diagnostic criteria from newer studies. There's no clean population-level data to settle this either way: no national registry exists, and the diagnostic criteria weren't formally spelled out until ASHA's 2007 technical report. Boys get diagnosed roughly twice as often as girls, though referral bias may explain part of that gap. ^[4] CAS turns up across every language and culture studied, and it can occur on its own or alongside other diagnoses, including autism, Down syndrome, galactosemia, and fragile X syndrome.

Among autistic children with significant speech delays, a meaningful share also have CAS. A study in the Journal of Autism and Developmental Disorders found CAS features in a substantial proportion of minimally verbal autistic children, and that overlap matters for therapy, since these kids often need motor-based speech work alongside AAC. ^[6] Our piece on autism spectrum speech therapy gets into where the two diagnoses meet.

What therapy actually works for CAS?

The best-evidenced treatments lean on motor learning principles. The brain needs to build and automatize motor programs through high-repetition, systematic practice, which is a different job than treating a phonological disorder, where the focus is sound contrasts rather than motor planning. The most studied approaches are Rapid Syllable Transition Treatment (ReST), Dynamic Temporal and Tactile Cueing (DTTC), and the Nuffield Dyspraxia Programme (NDP3). A 2015 systematic review by Murray, McCabe, and Ballard found that intensive, motor-learning-based intervention beat less frequent or less structured approaches by a clear margin. ^[4] Intensive means a lot of practice trials per session, sessions three or more times a week, and practice spread throughout the week rather than crammed in. Parents do more of the heavy lifting here than most research gives them credit for. Practicing at home between sessions can roughly double the motor trials a child gets in a week, and that doesn't mean drilling your child at the dinner table. It means short, structured 5 to 10 minute sessions using the exact targets and cueing your SLP taught you.

For children who are minimally verbal or whose CAS is severe, AAC belongs alongside speech therapy from the start, not as a last resort. It doesn't block speech development and often supports it. ^[8] Our article on AAC devices walks through the options. When in-person therapy is hard to find nearby, online speech therapy now has a growing evidence base for motor speech disorders, especially for older children who do well over video. Apraxia Kids publishes a research summary page worth bookmarking. ^[9]

How does coding change if my child also has autism or another diagnosis?

When a child has more than one diagnosis, every relevant code goes on the claim. A child with both ASD and CAS would typically carry F84.0 (autism spectrum disorder) alongside F80.0 or F80.89 on the same claim. That's standard practice; one diagnosis doesn't cancel out the other. ^[1]

The real risk is that some insurers flag claims carrying F84.0 and apply behavioral health carve-out rules, routing the claim to a behavioral health subsidiary that may cover speech therapy differently, and sometimes worse, than the medical benefit would. If that happens, your case is straightforward: CAS is a motor speech disorder with a neurological basis, not a behavioral health condition, so it belongs under the medical benefit. Put that in writing. For children with Down syndrome or other genetic conditions that commonly bring CAS along with them, the genetic diagnosis code (Q90.9 for Down syndrome, for instance) often sits as a secondary code. That can help establish medical necessity and sometimes smooths prior authorization, since the overall clinical picture reads more clearly.

Children with both CAS and autism who are building functional communication may need a mix of speech therapy, AAC, and behavioral approaches, and coordinating those threads is one of the harder parts of managing care. Our article on apraxia of speech goes deeper into the motor speech side.

What to bring to the first speech therapy appointment

Bring anything that gives the SLP context: medical records, prior evaluations (audiological testing matters most, since hearing loss can mimic these patterns), a list of the words and sounds your child can and can't make, and video of your child talking at home. The home video earns its place because kids often perform differently in a clinic than they do around familiar faces. Bring your insurance card too, and ask the front desk whether they need a referral code or prior authorization number before the evaluation starts. Some insurers require authorization for that first evaluation session even more strictly than for ongoing therapy.

Ask the SLP directly what diagnostic criteria they use for CAS and which ICD-10 code they'll assign. An experienced motor speech SLP won't blink at that question; it tells them you're paying attention. If the evaluation ends in a CAS diagnosis, ask for the written report before you leave, or within a clear timeframe. That report is what you'll carry to the school, the insurer, and every other provider down the line. It should name childhood apraxia of speech outright, describe the diagnostic features observed, and spell out the recommended therapy frequency and approach.

An app like Little Words can help keep home practice consistent between sessions, with structured activities matched to what your SLP is targeting. It won't replace therapy, but filling the gap between weekly sessions with guided practice is one of the higher-return things you can do.

What if an insurance claim for CAS therapy gets denied?

Denials happen, and they're not the end of the road. You can appeal, and appeals for medically necessary speech therapy succeed more often than most parents expect, especially with strong documentation behind them. The common denial reasons are lack of medical necessity, benefits limited to developmental disorders the plan excludes, or a missing prior authorization. Each one calls for a different response.

For medical necessity denials, your appeal should include the SLP's diagnostic report naming CAS as a neurological motor speech disorder, the three core diagnostic criteria documented in the evaluation, and ASHA's position on CAS as a neurological disorder. ^[2] Adding a peer-reviewed citation, like Murray et al. 2015 on the evidence for intensive treatment, isn't overkill: reviewers respond to clinical documentation. For prior authorization problems, ask your SLP whether they can submit a retroactive authorization request. Some plans allow this, especially for an initial evaluation.

If your internal appeal fails, request an external review. Under the Affordable Care Act, most plans must offer external review by an independent organization. ^[7] The external reviewer weighs the medical evidence without deferring to the insurer's original decision, and external review overturns insurer decisions in a meaningful share of speech and language cases, though solid aggregate data specific to this category is hard to come by. Keep every document: the original claim, the denial letter, the date and reference number of every phone call, and copies of everything you send in. It's tedious. It also matters.

Frequently asked questions

What is the exact ICD-10-CM code for childhood apraxia of speech?

There is no ICD-10-CM code that says exactly 'childhood apraxia of speech.' The most commonly used codes are F80.0 (phonological disorder), F80.89 (other developmental disorders of speech and language), and R47.89 (other speech disturbances). Some providers also use R47.01. The right code depends on the clinical presentation and the billing context. Your child's SLP assigns it based on documentation.

Will insurance cover speech therapy if the ICD-10 code is F80.0?

Many plans cover speech therapy under F80.0, but coverage varies widely by insurer and plan type. Some plans exclude purely developmental conditions. Because CAS has a neurological basis, pairing F80.0 with documentation that names apraxia and describes the motor speech features can strengthen a medical necessity argument. Call your insurer before the first session to confirm coverage for the specific codes being billed.

Can a pediatrician diagnose childhood apraxia of speech?

A pediatrician can screen for speech concerns, note developmental delays, and refer to a speech-language pathologist. Only a licensed SLP can diagnose CAS. The diagnosis requires specialized motor speech assessment that goes past a standard developmental screening. A pediatrician's concern about apraxia is not a clinical diagnosis and is not enough for insurance billing or school eligibility.

How is CAS different from a speech delay or phonological disorder?

A general speech delay means a child acquires speech sounds later than typical but follows a typical pattern. A phonological disorder involves rule-based sound errors. CAS is a motor planning disorder: the brain struggles to sequence the precise movements needed for speech, producing inconsistent, variable errors on the same words across attempts. CAS needs motor-learning-based therapy, not the approaches used for phonological disorders or general delays.

At what age can CAS be reliably diagnosed?

Definitive diagnosis is difficult before age 2.5 to 3 because very young children's speech is inherently variable. ASHA accepts a 'suspected' or 'working' diagnosis for younger children. A suspected diagnosis is still enough to begin therapy and to support insurance billing. Waiting for certainty before starting is not recommended, since early intensive intervention produces better outcomes.

Does childhood apraxia of speech go away on its own?

No. Unlike some mild speech delays that resolve without help, CAS does not typically resolve on its own. Children with CAS need motor-learning-based speech therapy, usually intensive (three or more sessions a week in early stages). With the right therapy, many children make real progress and develop functional speech. Without treatment, the disorder persists and can affect literacy, academics, and social communication.

Is CAS more common in children with autism?

CAS appears more often in children with autism than in the general population, particularly among those who are minimally verbal. Some researchers estimate a meaningful share of minimally verbal autistic children have co-occurring CAS features. When both diagnoses are present, both ICD-10 codes (F84.0 for ASD and the relevant speech code for CAS) should appear on claims. Treatment usually combines motor speech therapy with AAC.

How do I find a speech therapist who specializes in childhood apraxia of speech?

Apraxia Kids (apraxia-kids.org) keeps a provider directory of SLPs who have identified themselves as having CAS-specific training and experience. Not all general pediatric SLPs have deep motor speech expertise. When you call potential providers, ask whether they use motor-learning-based approaches like DTTC or ReST, how many children with CAS they currently treat, and what therapy frequency they recommend.

How often should a child with CAS receive speech therapy?

Most evidence supports intensive therapy for CAS, particularly in early stages. ASHA guidance and research by Murray et al. (2015) point to three to five sessions a week with high practice trial counts per session producing better outcomes than once-weekly therapy. As the child progresses and starts to generalize skills, frequency can drop. School-based therapy alone (one to two sessions a week) is usually not enough for moderate to severe CAS.

Can AAC devices help a child with childhood apraxia of speech?

Yes. AAC is a first-line tool for children with CAS, not a last resort. It does not block speech development and often supports it by cutting communication frustration and giving the child a reliable way to express themselves while motor speech skills grow. Speech-generating devices, picture-based systems, and low-tech boards all get used depending on need. AAC and speech therapy work together, not against each other.

What should a CAS diagnosis report include?

A proper CAS evaluation report should include the child's speech sound inventory, results of dynamic motor speech assessment, documentation of the three core diagnostic features (inconsistent errors, disrupted coarticulation, and off prosody), an oral mechanism exam summary, language assessment results, the assigned ICD-10 code or codes, and specific recommendations for therapy frequency, approach, and home practice. This is the document you use with schools, insurers, and other providers.

Does CAS affect reading and writing too?

Yes. Because reading and spelling lean heavily on phonological awareness, children with CAS carry elevated risk for dyslexia and reading difficulties. The motor speech challenges and phonological processing weaknesses often seen in CAS overlap with the skills needed to decode written words. SLPs and educational teams should watch literacy development closely and build phonological awareness work into the child's therapy and IEP goals.

What is the ICD-10 code if a child has both CAS and autism?

When both diagnoses are present, both codes appear on the claim. The autism code is F84.0 (autism spectrum disorder). The CAS-related code is typically F80.0, F80.89, or R47.89 depending on the SLP's clinical judgment. Both codes can and should be listed together. Watch for insurers who route the claim to a behavioral health benefit because of F84.0; CAS therapy belongs under the medical benefit as a neurological motor speech disorder.

Sources

1. CMS, ICD-10-CM Official Guidelines for Coding and Reporting FY2024: ICD-10-CM code structure and guidelines for assigning diagnosis codes including F80.0, F80.89, R47.01, and R47.89 in clinical and billing contexts
2. ASHA, Childhood Apraxia of Speech Technical Report 2007: ASHA defines CAS as a neurological speech motor disorder with three core diagnostic features: inconsistent errors on consonants and vowels, lengthened and disrupted coarticulatory transitions, and inappropriate prosody
3. U.S. Department of Education, IDEA Statute and Regulations: IDEA Part C covers Early Intervention for children birth to age 3; Part B covers school-based services for children ages 3-21 with disabilities affecting educational performance, including speech or language impairments
4. Murray E, McCabe P, Ballard KJ, Journal of Speech Language and Hearing Research, 2015: Systematic review finding that intensive motor-learning-based intervention produced significantly better outcomes for CAS; CAS prevalence estimated at approximately 1-2 per 1,000 children with a roughly 2:1 male-to-female ratio
5. American Academy of Pediatrics, Developmental Surveillance and Screening Policy Statement: Pediatricians conduct developmental screening and refer to specialists; diagnosis of specific speech disorders including CAS requires evaluation by a licensed speech-language pathologist
6. Tierney C et al., Journal of Autism and Developmental Disorders, 2015: CAS features were identified in a substantial proportion of minimally verbal children with autism spectrum disorder, with implications for motor-based speech therapy and AAC intervention
7. HealthCare.gov, Appealing a Health Plan Decision (External Review): Under the Affordable Care Act, most health plans must offer an external review by an independent organization after an internal appeal is denied
8. ASHA, Augmentative and Alternative Communication Evidence Map: AAC does not prevent speech development and is recommended as a first-line tool alongside speech therapy for children with severe CAS or minimal verbal output
9. Apraxia Kids, Childhood Apraxia of Speech Research and Resources: Apraxia Kids maintains a provider directory and publishes updated research summaries on evidence-based treatment approaches for CAS including DTTC, ReST, and NDP3
10. ASHA, Speech Sound Disorders: Articulation and Phonology Practice Portal: Distinction between CAS (motor planning disorder) and phonological disorders (rule-based sound pattern errors); co-occurrence is possible but requires different treatment approaches
11. National Institute on Deafness and Other Communication Disorders (NIDCD), Apraxia of Speech: NIDCD describes childhood apraxia of speech as a motor speech disorder distinct from dysarthria, involving difficulty planning and programming speech movements rather than muscle weakness