# CAS: Screening and Diagnostic Pathway Under 7

Canonical: https://pinnacleblooms.org/ask/what-is-the-recommended-screening-and-diagnostic-pathway-for-childhood-apraxia-of-speech-in-children-under-7
Publisher: Pinnacle Blooms Network / Bharath Healthcare Laboratories Private Limited

CAS has no single diagnostic test; a paediatric SLP makes the diagnosis after a differential motor-speech evaluation. The pathway is screen, rule out hearing and structural causes, comprehensive motor-speech assessment, and differential diagnosis. Under ~3 years a provisional designation enables early therapy with serial re-evaluation.

*A child who knows exactly what they want to say but cannot reliably make the mouth do it — that is the puzzle CAS presents, and the pathway is built to solve it precisely.*

## In short
There is **no single test** for Childhood Apraxia of Speech (CAS, ICD-11 6A01.0); diagnosis is a clinical judgement made by a paediatric speech-language pathologist after differential motor-speech assessment. The pathway runs **screen → hearing and oral-mechanism check → comprehensive motor-speech evaluation → differential diagnosis**, and a provisional label is appropriate under ~3 years pending confirmation as speech emerges. Refer early — do not wait — because CAS responds to intensive, principled motor-based therapy.

## The diagnostic pathway
**1. Screen and rule out.** Confirm hearing (audiology) and complete an oral-mechanism exam to exclude structural or dysarthric causes. Establish that receptive language and non-verbal cognition outstrip expressive speech — the hallmark dissociation.

**2. Comprehensive motor-speech evaluation.** Assess across varying utterance length and complexity, including diadochokinetic and multisyllabic tasks. ASHA recognises three consensus features: inconsistent errors on repeated productions, lengthened and disrupted coarticulatory transitions, and inappropriate prosody (notably lexical/phrasal stress).

**3. Differential diagnosis.** Distinguish from phonological disorder, dysarthria and severe expressive delay. In children under 3 with limited speech output, a **working/provisional CAS** designation enables therapy while the profile clarifies with repeated sampling.

**4. Re-evaluation.** Serial assessment tracks change and refines the diagnosis as the speech system matures.

## The Pinnacle way
A clinical [AbilityScore®](/ask/what-is-the-abilityscore-and-how-is-it-calculated) and any diagnosis are formed **only at a Pinnacle Blooms Network centre, under qualified clinician care** — never from an app or checklist. Our [speech therapy](/speech-therapy) pathway pairs this structured, clinician-administered profile with motor-speech-specific intervention; see the full [Childhood Apraxia of Speech](/childhood-apraxia-of-speech) overview for families.

## Trusted sources
ASHA technical/position statements on CAS (asha.org); WHO ICD-11 6A01.0 (icd.who.int).

**Next step —** Refer a child with suspected CAS for a paediatric motor-speech evaluation — [partner with a Pinnacle centre](/speech-therapy).

This is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.

## Sources
- WHO ICD-11 6A01.0 Developmental speech sound disorder: https://icd.who.int/
- ASHA — Childhood Apraxia of Speech: https://www.asha.org/

## Connected topics and perspectives
- Conditions: https://pinnacleblooms.org/ask/conditions
- Doctor: https://pinnacleblooms.org/ask/lens/stakeholder/doctor
- Communication: https://pinnacleblooms.org/ask/lens/domain/communication
- Assessment: https://pinnacleblooms.org/ask/lens/intent/assessment
- Measure: https://pinnacleblooms.org/ask/lens/lifecycle/measure
- Special Education: https://pinnacleblooms.org/ask/lens/route/special-education
- Early Clarity: https://pinnacleblooms.org/ask/lens/empowerment/early_clarity

## Related question paths

### Understand the subject
- What is Childhood Apraxia of Speech and its ICD-11 features?: https://pinnacleblooms.org/ask/what-is-childhood-apraxia-of-speech-and-what-are-its-icd-11-features-in-early-childhood
- ICD-11 Classification of Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-childhood-apraxia-of-speech
- SNOMED CT Concept for Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/what-is-the-snomed-ct-concept-for-childhood-apraxia-of-speech
- How does Childhood Apraxia of Speech affect a child's daily life?: https://pinnacleblooms.org/ask/how-does-childhood-apraxia-of-speech-affect-a-child-s-daily-life
- Is Childhood Apraxia of Speech considered a disability?: https://pinnacleblooms.org/ask/is-childhood-apraxia-of-speech-considered-a-disability
- Is Childhood Apraxia of Speech Genetic or Hereditary?: https://pinnacleblooms.org/ask/is-childhood-apraxia-of-speech-genetic-or-hereditary
- What are common myths about Childhood Apraxia of Speech?: https://pinnacleblooms.org/ask/what-are-common-myths-about-childhood-apraxia-of-speech
- What are the types or levels of Childhood Apraxia of Speech?: https://pinnacleblooms.org/ask/what-are-the-types-or-levels-of-childhood-apraxia-of-speech
- What causes Childhood Apraxia of Speech in children?: https://pinnacleblooms.org/ask/what-causes-childhood-apraxia-of-speech-in-children
- Early Intervention Outcomes in Childhood Apraxia of Speech (Under 7): https://pinnacleblooms.org/ask/what-does-current-research-show-about-early-intervention-outcomes-for-childhood-apraxia-of-speech-in-children-under-7
- What is Childhood Apraxia of Speech?: https://pinnacleblooms.org/ask/what-is-childhood-apraxia-of-speech
- Childhood Apraxia of Speech in Early Childhood: https://pinnacleblooms.org/ask/what-is-childhood-apraxia-of-speech-and-what-does-it-look-like-in-early-childhood

### Recognise signs & concerns
- Early indicators of Childhood Apraxia of Speech a paediatrician should watch for: https://pinnacleblooms.org/ask/what-early-indicators-of-childhood-apraxia-of-speech-should-a-paediatrician-watch-for
- When to refer suspected Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/when-should-a-doctor-refer-a-child-with-suspected-childhood-apraxia-of-speech-for-developmental-therapy
- Can Childhood Apraxia of Speech be cured?: https://pinnacleblooms.org/ask/can-childhood-apraxia-of-speech-be-cured
- Can Childhood Apraxia of Speech be prevented?: https://pinnacleblooms.org/ask/can-childhood-apraxia-of-speech-be-prevented
- Do boys show Childhood Apraxia of Speech differently?: https://pinnacleblooms.org/ask/do-boys-show-childhood-apraxia-of-speech-differently
- Do girls show Childhood Apraxia of Speech differently?: https://pinnacleblooms.org/ask/do-girls-show-childhood-apraxia-of-speech-differently
- Spotting Childhood Apraxia of Speech early at the frontline: https://pinnacleblooms.org/ask/how-can-a-frontline-health-worker-spot-a-child-with-possible-childhood-apraxia-of-speech-early
- Should I be worried about Childhood Apraxia of Speech?: https://pinnacleblooms.org/ask/should-i-be-worried-my-child-might-have-childhood-apraxia-of-speech
- Early Signs of Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-childhood-apraxia-of-speech
- Early signs of Childhood Apraxia of Speech in a 1-year-old boy: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-childhood-apraxia-of-speech-in-a-1-year-old-boy
- Early Signs of Childhood Apraxia of Speech in a 1-Year-Old Girl: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-childhood-apraxia-of-speech-in-a-1-year-old-girl
- Early Signs of Childhood Apraxia of Speech at 12–18 Months: https://pinnacleblooms.org/ask/what-are-the-early-signs-of-childhood-apraxia-of-speech-in-a-12-to-18-month-old

### Explore causes & influences
- Contributing factors for Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/what-are-the-known-contributing-factors-for-childhood-apraxia-of-speech-in-early-childhood
- Are Boys More Likely to Have Childhood Apraxia of Speech?: https://pinnacleblooms.org/ask/are-boys-more-likely-to-have-childhood-apraxia-of-speech
- Are girls more likely to have Childhood Apraxia of Speech?: https://pinnacleblooms.org/ask/are-girls-more-likely-to-have-childhood-apraxia-of-speech
- Early intervention for Childhood Apraxia of Speech: advancing UNCRPD and the SDGs: https://pinnacleblooms.org/ask/how-does-early-intervention-for-childhood-apraxia-of-speech-advance-un-child-rights-uncrpd-and-the-sdgs
- What Causes Childhood Apraxia of Speech in Young Children?: https://pinnacleblooms.org/ask/what-causes-childhood-apraxia-of-speech-in-young-children
- Cost-effectiveness of early therapy for Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/what-is-the-cost-effectiveness-of-early-therapy-for-childhood-apraxia-of-speech-in-young-children
- Prevalence and Public-Health Burden of Childhood Apraxia of Speech in India: https://pinnacleblooms.org/ask/what-is-the-prevalence-and-public-health-burden-of-childhood-apraxia-of-speech-among-young-children-in-india

### Understand assessment
- Recommended Screening & Diagnostic Pathway for Speech and Language Delay Under 7: https://pinnacleblooms.org/ask/what-is-the-recommended-screening-and-diagnostic-pathway-for-speech-and-language-delay-in-children-under-7
- Screening & Diagnostic Pathway for Social Communication Difficulties Under 7: https://pinnacleblooms.org/ask/what-is-the-recommended-screening-and-diagnostic-pathway-for-social-communication-difficulties-in-children-under-7
- Screening & diagnostic pathway for non-verbal / minimally verbal children under 7: https://pinnacleblooms.org/ask/what-is-the-recommended-screening-and-diagnostic-pathway-for-non-verbal-minimally-verbal-presentation-in-children-under-7
- Screening and diagnostic pathway for Motor Planning Difficulties in children under 7: https://pinnacleblooms.org/ask/what-is-the-recommended-screening-and-diagnostic-pathway-for-motor-planning-difficulties-in-children-under-7
- Auditory Processing Difficulties: Screening Pathway Under 7: https://pinnacleblooms.org/ask/what-is-the-recommended-screening-and-diagnostic-pathway-for-auditory-processing-difficulties-in-children-under-7
- Recommended autism screening and diagnostic pathway under 7: https://pinnacleblooms.org/ask/what-is-the-recommended-screening-and-diagnostic-pathway-for-autism-spectrum-in-children-under-7
- How AbilityScore Tracks Progress in Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/how-does-abilityscore-track-progress-in-a-child-with-childhood-apraxia-of-speech
- How Childhood Apraxia of Speech Is Assessed in a Young Child: https://pinnacleblooms.org/ask/how-is-childhood-apraxia-of-speech-assessed-in-a-young-child
- How Is Childhood Apraxia of Speech Assessed in Children Under 7?: https://pinnacleblooms.org/ask/how-is-childhood-apraxia-of-speech-assessed-in-children-under-7
- What an AbilityScore of 0–100 Means in Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-0-100-mean-for-a-child-with-childhood-apraxia-of-speech
- What an AbilityScore of 100–200 means for Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-100-200-mean-for-a-child-with-childhood-apraxia-of-speech
- AbilityScore 200–300 in Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/what-does-an-abilityscore-of-200-300-mean-for-a-child-with-childhood-apraxia-of-speech

### Explore therapy & support
- Supporting a child with Childhood Apraxia of Speech day to day: https://pinnacleblooms.org/ask/as-a-grandparent-or-caregiver-how-can-i-support-a-child-with-childhood-apraxia-of-speech-day-to-day
- Can a child with CAS attend mainstream school?: https://pinnacleblooms.org/ask/can-a-child-with-childhood-apraxia-of-speech-attend-a-mainstream-school
- Can a Child With Childhood Apraxia of Speech Attend Regular School?: https://pinnacleblooms.org/ask/can-a-child-with-childhood-apraxia-of-speech-attend-a-regular-school
- Can a Child With Childhood Apraxia of Speech Live Independently?: https://pinnacleblooms.org/ask/can-a-child-with-childhood-apraxia-of-speech-grow-up-to-live-independently
- How a Teacher Can Support a Child with Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/how-can-a-classroom-teacher-help-a-child-with-childhood-apraxia-of-speech-take-part-and-learn
- Childhood Apraxia of Speech in District Early Intervention: https://pinnacleblooms.org/ask/how-can-a-district-early-intervention-programme-identify-and-support-children-under-7-with-childhood-apraxia-of-speech
- How a Teacher Can Support a Child with Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/how-can-a-teacher-include-and-support-a-young-child-with-childhood-apraxia-of-speech-in-a-mainstream-classroom
- How can we support communication development in a child with Childhood Apraxia of Speech?: https://pinnacleblooms.org/ask/how-can-we-support-communication-development-in-a-child-with-childhood-apraxia-of-speech
- Therapy for Childhood Apraxia of Speech: https://pinnacleblooms.org/ask/how-does-therapy-help-a-child-with-childhood-apraxia-of-speech-make-progress
- How Is Childhood Apraxia of Speech Diagnosed in a Child?: https://pinnacleblooms.org/ask/how-is-childhood-apraxia-of-speech-diagnosed-in-a-child
- How Childhood Apraxia of Speech Is Supported Through Therapy: https://pinnacleblooms.org/ask/how-is-childhood-apraxia-of-speech-supported-through-therapy
- AbilityScore® for Childhood Apraxia of Speech: next steps: https://pinnacleblooms.org/ask/my-child-with-childhood-apraxia-of-speech-has-an-abilityscore-of-0-100-what-should-we-do-next

### At home & in everyday life
- How to Support Your Child with Childhood Apraxia of Speech at Home: https://pinnacleblooms.org/ask/how-can-i-support-my-child-with-childhood-apraxia-of-speech-at-home