{"h1":"ICD-11 Classification of Speech and Language Delay (6A01)","faq":[{"a":"It is classified under 6A01 — Developmental speech or language disorders — in the ICD-11-MMS, within the neurodevelopmental disorders grouping (6A0).","q":"What is the exact ICD-11 code for speech and language delay?"},{"a":"ICD-11 codes the condition as a developmental speech or language *disorder* (6A01). 'Delay' is a presenting concern; the formal classification requires functional impairment beginning in the developmental period and exclusion of other causes such as hearing loss.","q":"Does ICD-11 use the term 'delay' or 'disorder'?"},{"a":"Developmental speech sound disorder (6A01.0), developmental speech fluency disorder (6A01.1) and developmental language disorder (6A01.2), the latter with receptive-expressive, mainly expressive and pragmatic profiles.","q":"What are the subtypes under 6A01?"},{"a":"No. Diagnosis requires performance substantially below age expectation with functional limitation, after considering hearing loss, intellectual developmental disorder and global delay. Hearing should be formally assessed first.","q":"Should every late-talking child be coded under 6A01?"}],"lang":"en","slug":"what-is-the-icd-11-classification-for-speech-and-language-delay","title":"ICD-11 Classification for Speech and Language Delay","entity":{"key":"speech-delay","kind":"condition","name":"Speech and Language Delay","slug":null},"lenses":[{"kind":"stakeholder","label":"Doctor","value":"doctor"},{"kind":"domain","label":"Communication","value":"communication"},{"kind":"intent","label":"Definition","value":"definition"},{"kind":"lifecycle","label":"Screen","value":"screen"},{"kind":"route","label":"Speech-Therapy","value":"speech-therapy"},{"kind":"empowerment","label":"Early Clarity","value":"early_clarity"}],"parent":{"key":"conditions","label":"Conditions"},"related":[{"lang":"en","slug":"what-is-speech-and-language-delay-and-what-are-its-icd-11-features-in-early-childhood","title":"Speech and Language Delay (ICD-11 6A01) Defined"},{"lang":"en","slug":"what-is-speech-and-language-delay","title":"What is Speech and Language Delay?"},{"lang":"en","slug":"what-is-developmental-language-disorder-and-what-are-its-icd-11-features-in-early-childhood","title":"Developmental Language Disorder: ICD-11 Definition & Early Features"},{"lang":"en","slug":"what-are-the-types-or-levels-of-speech-and-language-delay","title":"What are the types or levels of Speech and Language Delay?"},{"lang":"en","slug":"what-is-the-icd-11-classification-for-developmental-language-disorder","title":"ICD-11 Classification for Developmental Language Disorder"},{"lang":"en","slug":"what-is-the-snomed-ct-concept-for-speech-and-language-delay","title":"What is the SNOMED CT concept for Speech and Language Delay?"}],"summary":"In ICD-11-MMS, speech and language delay is classified under code 6A01 — Developmental speech or language disorders, within neurodevelopmental disorders. It encompasses speech sound disorder (6A01.0), speech fluency disorder (6A01.1) and developmental language disorder (6A01.2), distinguishing a true developmental disorder from transient variation.","answer_md":"*Behind a parent's worry about \"late talking\" sits a precise clinical question — where does speech and language delay actually sit in ICD-11?*\n\n## In short\nIn ICD-11-MMS, what is colloquially called **speech and language delay** is classified under **6A01 — Developmental speech or language disorders**, within the broader grouping of neurodevelopmental disorders (6A0). The code captures persistent difficulties in acquiring, producing or understanding speech and language that begin in the developmental period and are not better accounted for by hearing loss, another sensory deficit, intellectual developmental disorder or a global delay. ICD-11 deliberately distinguishes a true developmental disorder from transient or expected variation — so \"delay\" is a presenting concern, while **6A01** is the diagnostic classification.\n\n## The classification, in detail\nThe **6A01** block resolves into clinically meaningful subtypes, which is the practical value of ICD-11 over a single \"delay\" label:\n\n- **6A01.0** Developmental speech sound disorder — difficulty with articulation/phonology beyond age expectation.\n- **6A01.1** Developmental speech fluency disorder — disruption of normal fluency and timing (stuttering).\n- **6A01.2** Developmental language disorder, with subtypes specifying impairment of receptive **and** expressive language, mainly expressive, mainly pragmatic, or other specified profiles.\n\nDiagnosis requires that the difficulty falls substantially below the expected level for age, emerges in the developmental period, and produces functional limitation — and that hearing impairment and other neurological or intellectual conditions have been considered. ICD-11 sits alongside the **WHO ICF** functioning framework, so the code names the condition while functional profiling describes its day-to-day impact.\n\n## When to refer\nRefer for structured speech-language assessment rather than \"watchful waiting\" when there is no babble or gesture by 12 months, no single words by 16 months, no two-word phrases by 24 months, any **loss** of previously acquired words, or persistent parental concern. Always rule out hearing loss first via audiology.\n\n## The Pinnacle way\nAbilityScore® is part of Pinnacle’s developmental assessment. Diagnosis, where needed, requires an appropriately qualified healthcare professional — never from a code, a checklist or an app. Coding informs the clinical picture; it does not replace assessment. Explore how we [support speech and language development](https://www.pinnacleblooms.org/top-speech-therapy-center-india-proven-improvement-rate), [how the AbilityScore® is established](/ask/what-is-the-abilityscore-and-how-is-it-calculated), and [begin a developmental review](/).\n\n## Trusted sources\nWHO ICD-11 for Mortality and Morbidity Statistics, code 6A01 (developmental speech or language disorders); CDC developmental milestone guidance; Indian Academy of Pediatrics; American Academy of Pediatrics (HealthyChildren.org); RBSK developmental screening framework.\n\n**Next step —** Refer or review a child with persistent speech-language concerns at a Pinnacle Blooms Network centre for structured, clinician-led assessment.\n\nThis is general information, not a diagnosis — individual assessment and diagnosis require an appropriately qualified healthcare professional.","canonical":"https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-speech-and-language-delay","editorial":{"reviewed_at":"2026-06-11T20:12:18.613642+00:00","reviewed_by":null,"developed_by":"SETU Consortium · Pinnacle Blooms Network"},"alternates":[{"href":"https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-speech-and-language-delay","lang":"en","indexable":true},{"href":"https://pinnacleblooms.org/ask/what-is-the-icd-11-classification-for-speech-and-language-delay-te","lang":"te","indexable":true}],"dimensions":[{"key":"conditions","label":"Conditions"}],"meta_title":"ICD-11 Code 6A01: Speech & Language Delay","meta_robots":"index, follow, max-image-preview:large","everyday_tip":"Before attributing late talking to a disorder, confirm hearing has been formally tested — undetected otitis media or sensorineural loss is the most common reversible mimic.","published_at":"2026-06-10T10:52:00.07543+00:00","reading_paths":[{"key":"understand","items":[{"lang":"en","slug":"what-is-speech-and-language-delay-and-what-are-its-icd-11-features-in-early-childhood","title":"Speech and Language Delay (ICD-11 6A01) Defined","reason":"Linked from this answer"},{"lang":"en","slug":"what-is-the-icd-11-classification-for-developmental-language-disorder","title":"ICD-11 Classification for Developmental Language Disorder","reason":"Linked from this answer"},{"lang":"en","slug":"what-is-speech-and-language-delay","title":"What is Speech and Language Delay?","reason":"Linked from this answer"},{"lang":"en","slug":"what-is-the-snomed-ct-concept-for-speech-and-language-delay","title":"What is the SNOMED CT concept for Speech and Language Delay?","reason":"Linked from this answer"},{"lang":"en","slug":"what-is-developmental-language-disorder-and-what-are-its-icd-11-features-in-early-childhood","title":"Developmental Language Disorder: ICD-11 Definition 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Act Early. milestones"},{"url":"https://www.healthychildren.org","label":"American Academy of Pediatrics — HealthyChildren.org"}],"last_reviewed_at":"2026-06-10T10:52:00.07543+00:00","meta_description":"Speech and language delay is classified under ICD-11-MMS code 6A01 — developmental speech or language disorders. Subtypes, diagnostic criteria and when to ","related_materials":[],"related_techniques":[]}