Last updated 2026-07-09
TL;DR
There is no ICD-10-CM code that says exactly "childhood apraxia of speech." Speech-language pathologists most often bill F80.0 (phonological disorder) or F80.89, while some neurologists use R47.01 (dysarthria and anarthria). The code matters because insurers pay by code, not by the therapy note. Only a licensed SLP can assign the diagnosis.
What is the ICD-10 code for childhood apraxia of speech?
No single ICD-10-CM code says "childhood apraxia of speech." The disorder never got its own dedicated code in the ICD-10-CM system used in the United States. [1] So clinicians pick the closest fit. Speech-language pathologists most often use F80.0 (phonological disorder) or F80.89 (other developmental disorders of speech and language). Some neurologists use R47.01 (dysarthria and anarthria) or R47.89 (other speech disturbances).
That gap creates real confusion. A neurologist billing for a diagnostic workup may reach for R47.01. An SLP writing a therapy plan usually prefers F80.0 or F80.89. Some practices put more than one code on the same claim to paint a clearer clinical picture. None of these is wrong as long as the clinician documents the specific features of CAS: inconsistent errors on consonants and vowels, lengthened transitions between sounds, and off prosody, 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 does not cancel the apraxia code. It tells the insurer the whole story.
Ask for the exact code your provider is using before any claim goes out. You have the right to know it, and you need it the day you have to appeal a denial.
Why does the ICD-10 code matter for my child's speech therapy coverage?
Insurers process claims by code, not by the narrative in a therapy note. The code your provider submits decides whether the claim lands in a covered bucket, gets kicked to a medical necessity review, or bounces back denied. This is the difference between a $150 self-pay session and a $30 copay.
Most commercial insurers cover speech therapy for CAS when the file documents it as a medical condition, meaning the disorder has a neurological basis rather than a purely developmental one. ASHA classifies CAS as a neurological speech motor disorder [2], and that classification carries weight. Some plans exclude "developmental" speech delays from medical benefits while paying for "medically necessary" therapy tied to neurological conditions. Using R47.01, or pairing a speech code with a neurological etiology code like G93.89 (other specified disorders of the brain), can strengthen the argument that therapy is medically necessary, not elective.
Medicaid runs on a different track. Under the Individuals with Disabilities Education Act, children under age 3 can get speech therapy through Early Intervention regardless of insurance coding, and children ages 3 to 21 can get it through school-based IEP services. [3] Neither pathway needs a specific ICD-10 code to start services, though the school still has to run its own eligibility evaluation.
Here is what actually helps. Before your child's first session, call your insurer and ask two things. Does my plan cover speech therapy for ICD-10 codes F80.0 or R47.01? Do I need a referral or prior authorization? Get the answer in writing or write down the call reference number.
What is childhood apraxia of speech, and how is it different from other speech disorders?
Childhood apraxia of speech is a motor speech disorder. The brain has trouble planning and programming the precise movements the mouth, tongue, and jaw need to make speech sounds. The muscles are not weak, which is what 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" one time and "duh-nah-pah" the next for banana is showing the inconsistency that marks CAS.
Late talkers often get grouped into one category. CAS is a specific motor diagnosis, not a slot in that group. A child who is simply slow to add words may catch up without heavy therapy. A child with CAS usually does not catch up alone and needs frequent, motor-learning-based intervention, 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.
One more line worth drawing: CAS is not the same as a phonological disorder, though the two can travel together. A phonological disorder is a rule-based pattern of errors, like always dropping final consonants. CAS produces variable, inconsistent errors that shift even when the child tries the same word twice in a row. Treating them the same way is a mistake.
How is CAS diagnosed, and who can make the diagnosis?
Only a licensed speech-language pathologist can diagnose childhood apraxia of speech. Pediatricians can and should screen for speech concerns and refer to an SLP, but a pediatrician's note that reads "possible apraxia" is not a clinical diagnosis and is not enough for insurance coding. [5]
A proper CAS 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 one alone settles the question.
Diagnosis is genuinely hard under age 3. ASHA accepts that a "suspected" or "working" diagnosis of CAS is appropriate for very young children when full certainty is not possible yet. [2] That matters because you should not wait for certainty to start therapy. A suspected CAS diagnosis still qualifies a child for services and still supports insurance billing.
Look for an SLP with specific motor speech experience. Apraxia Kids keeps a directory of providers who have identified themselves as having CAS expertise. Not every community speech therapist has that background, and it changes how well the diagnosis gets made.
For more on picking an SLP and how the evaluation process runs, see our guide on speech therapy and speech therapists.
What do the specific ICD-10 codes mean, and which one should my child have?
Here is a plain-language breakdown of the codes used most for CAS in clinical and billing practice:
| ICD-10-CM Code | Description | When it's used for CAS |
|---|---|---|
| F80.0 | Phonological disorder | When motor speech errors affect sound patterns; most common SLP code |
| F80.89 | Other developmental disorders of speech and language | When CAS doesn't fit neatly into F80.0; used for specificity |
| R47.01 | Dysarthria and anarthria | Used by some neurologists; technically describes muscle-based speech issues, so it's imprecise for CAS |
| R47.89 | Other speech disturbances | A catch-all sometimes used when no other code fits well |
| F84.0 | Autism spectrum disorder | Added when ASD is a co-occurring diagnosis |
| G93.89 | Other specified disorders of brain | Sometimes added to document neurological basis for medical necessity |
The code that belongs on your child's chart is the one the evaluating SLP decides best matches the clinical picture, backed by detailed narrative notes. [1] You cannot self-select a code, and you should not try. What you can do is ask your SLP which code they chose and why, and whether the documentation names childhood apraxia of speech outright even when the billing code is a broader category.
That naming detail earns its keep in appeals. If your insurer denies a claim, the supporting file (the evaluation report naming CAS, the three diagnostic criteria, and the SLP's credentials) gives you ground to stand on. Denials of speech therapy for a diagnosed neurological disorder get reversed on appeal more often than parents expect when the records are complete.
Does having a CAS diagnosis mean my child qualifies for an IEP or early intervention services?
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 (FAPE) when a disability affects educational performance. CAS counts as a speech or language impairment under IDEA Part B. 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. 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. Once you do, the school has 60 days in most states to finish it. [3]
Our full article on early intervention walks through how to reach Part C services and what to do when your state's intake feels slow.
What does current research say about how common CAS is?
Prevalence estimates for CAS swing widely because the disorder has been both overdiagnosed and underdiagnosed depending on the clinical setting. The most cited estimate is 1 to 2 children per 1,000, or roughly 0.1 to 0.2 percent of children. [4] Some researchers land higher, around 3.4 per 1,000, pointing to tighter diagnostic criteria in newer studies. Nobody has clean population-level data here, because there is no national registry and the diagnostic criteria were not formally operationalized until ASHA's 2007 technical report.
CAS gets diagnosed in boys more than girls, at roughly a 2:1 ratio, though referral bias may account for part of that. [4] It shows up across all languages and cultures. It can stand alone or ride alongside other diagnoses including autism, Down syndrome, galactosemia, and fragile X syndrome.
Among children diagnosed with autism who also have significant speech delays, a meaningful share have co-occurring CAS. A study in the Journal of Autism and Developmental Disorders found CAS features in a substantial proportion of minimally verbal autistic children, which shapes therapy because those kids often need motor-based speech work and AAC together. [6] If your child has autism and significant speech difficulties, our article on autism spectrum speech therapy covers where these two diagnoses meet.
What therapy approaches work best for CAS?
Motor learning principles drive the best-evidenced treatments for CAS. The brain has to build and automatize motor programs through high-repetition, systematic practice. That is a different job than treating a phonological disorder, where the focus is teaching sound contrasts.
The most researched approaches include 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 produced significantly better outcomes than less frequent or less structured approaches. [4] Intensive means a high number of practice trials per session, sessions three or more times a week, and practice spread across the week.
Parent involvement counts for more than the research usually lets on. Home practice between sessions can roughly double the motor trials a child gets each week. This does not mean drilling your child at the dinner table. It means 5 to 10 minute structured practice sessions using the exact targets the SLP sets, with the exact cueing hierarchy the SLP teaches you.
For children who are minimally verbal, or whose CAS is severe, augmentative and alternative communication (AAC) is a first-line tool used alongside speech therapy, not a last resort. AAC does not block speech development and often supports it. [8] Our article on AAC devices covers the options.
If in-person therapy is hard to reach, online speech therapy has a growing evidence base for motor speech disorders, especially for older children who engage well over video. Apraxia Kids publishes a research summary page worth bookmarking. [9]
How does ICD-10 coding change if my child also has autism or another diagnosis?
When a child carries more than one diagnosis, every relevant code goes on the claim. A child with both ASD and CAS would typically have F84.0 (autism spectrum disorder) plus F80.0 or F80.89 on the same claim. That is standard practice, and one diagnosis does not override the other. [1]
The real risk is that some insurers flag claims with 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. If that happens, your argument is clean: CAS is a motor speech disorder with a neurological basis, not a behavioral health condition, so it should process under the medical benefit. Put it in writing.
For children with Down syndrome or other genetic conditions that commonly bring CAS, the genetic diagnosis code (like Q90.9 for Down syndrome) often sits as a secondary code. That can actually help establish medical necessity and sometimes eases prior authorization, because the clinical picture reads clearer.
Children with CAS and autism who are building functional communication may use a mix of speech therapy, AAC, and behavioral approaches. Fitting those threads together is one of the harder parts of coordinating care. Our article on apraxia of speech goes deeper on the motor speech side of it.
What should I bring to my child's first speech therapy appointment?
Bring anything that gives the SLP context. Your child's medical records, any prior evaluations (audiological testing matters most, since hearing loss can mimic these patterns), a list of words and sounds your child can and cannot make, and video clips of your child talking at home. Home videos earn their spot because children often perform differently in a clinic than they do with familiar faces.
Bring your insurance card and ask the front desk whether they need a referral code or prior authorization number before the evaluation starts. Some insurers require authorization for the first evaluation session even more than for ongoing therapy.
Ask the SLP straight out: what diagnostic criteria are you using to evaluate for CAS, and which ICD-10 code will you assign? An experienced motor speech SLP will not flinch at that question. It signals you are informed and paying attention.
If the evaluation ends with a CAS diagnosis, ask for the written report before you leave or within a clear timeframe. That report is the document you carry to the school, the insurer, and every other provider. It should name childhood apraxia of speech outright, describe the diagnostic features observed, and spell out the recommended therapy frequency and approach.
Tools like the Little Words app can help you keep home practice consistent between sessions, with structured activities matched to what your SLP is targeting. It does not replace therapy. Filling the space between weekly sessions with guided practice is one of the highest-return things you can do.
What happens if an insurance claim for CAS therapy is denied?
Denials happen. They are not the end. You can appeal, and appeals for medically necessary speech therapy succeed more often than most parents guess, especially when the documentation is strong.
The common denial reasons for CAS claims are: not medically necessary, benefits limited to developmental disorders the plan excludes, or failure to get prior authorization. Each one takes 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 as documented in the evaluation, and ASHA's position on CAS as a neurological disorder. [2] Including a peer-reviewed citation, like Murray et al. 2015 on the evidence for intensive treatment, is not overkill. Reviewers respond to clinical documentation.
For prior authorization problems, ask your SLP whether they can submit a retroactive authorization request. Some plans allow it, 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 internal decision. External review overturns insurer decisions in a meaningful share of speech and language cases, though reliable aggregate data on this specific category is hard to find.
Keep every document: the original claim, the denial letter, the date and reference number of every phone call, and copies of everything you submit. This part is tedious. It 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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