Structuring ASD Diagnostic Reports: A Practical Guide for Australian Paediatricians

The Report's Many Audiences

An ASD diagnostic report serves multiple audiences simultaneously, and this is part of what makes it so challenging to write:

• The family needs to understand the diagnosis, what it means for their child, and what to do next. The language must be accessible and compassionate.
• NDIS planners need evidence that the child meets the disability criteria under the NDIS Act 2013, specifically that the condition is likely to be permanent and results in substantially reduced functional capacity.
• Schools need information that translates into classroom accommodations and Individual Education Plan (IEP) goals.
• Allied health professionals (speech pathologists, occupational therapists, psychologists) need enough clinical detail to inform their own assessments and intervention planning.
• Other medical professionals (GPs, psychiatrists, paediatric sub-specialists) need the clinical formulation and any relevant medical considerations.

A report that speaks only to one audience at the expense of others will fail to fulfil its purpose. The structure outlined below is designed to address all of these audiences within a single coherent document.

Required Sections of an ASD Diagnostic Report

1. Referral Information and Assessment Context

Begin with who referred the child, the reason for referral, and what the referrer's specific concerns are. Document the assessment dates and settings, who was present during the assessment (parents, carers, the child), and what information sources were used (parent interview, school report, allied health reports, previous assessments).

This section establishes the scope and limitations of your assessment. If you did not conduct a school observation or did not receive a school report despite requesting one, document this.

2. Developmental History

This is typically the longest section and the most important for establishing the developmental trajectory that supports the diagnosis. Cover the following domains:

Pregnancy and birth history. Gestational age, complications, birth weight, neonatal period. While most children with ASD have unremarkable birth histories, document this for completeness and to exclude other developmental risk factors.

Early developmental milestones. Motor milestones (sitting, crawling, walking), language milestones (first words, first sentences, conversational speech), and social milestones (social smile, joint attention, pointing, showing interest in peers). Use specific ages rather than vague descriptors.

Social and communication development. Quality of early social engagement, eye contact, response to name, interest in other children, development of reciprocal play, imaginative play, and conversation skills. Document regression if present (approximately 20-30% of children with ASD show some form of regression, most commonly in language between 18-24 months).

Restricted interests and repetitive behaviours. Age of onset, nature (lining up toys, intense interests, sensory seeking or avoidance, routines and rituals, motor stereotypies), and impact on daily functioning and family life.

Adaptive functioning. Self-care skills relative to age (dressing, toileting, feeding), ability to follow routines, response to transitions and unexpected changes.

Medical history. Including hearing and vision assessments (essential to document that sensory impairments have been excluded), sleep difficulties (extremely common in ASD), gastrointestinal issues, seizure history, and any genetic testing.

Family history. ASD, intellectual disability, language disorders, anxiety, ADHD, and other neurodevelopmental conditions in first- and second-degree relatives.

3. Information from Other Sources

Document the findings from school reports, allied health assessments, and any standardised parent-report measures you have used. For each source, note the date, the assessor, and the key findings relevant to the diagnostic question.

This section demonstrates that you have synthesised multi-source evidence rather than relying solely on the parent interview. NDIS assessors and schools place significant weight on the consistency of concerns across settings.

4. Clinical Observations

Document your direct observations of the child during the assessment. This includes observations during structured assessment activities (if you use the ADOS-2 or other standardised tools, report the module used, scores, and key observations) and informal observations throughout the appointment.

Structure your observations around the two DSM-5 diagnostic domains:

Domain A: Social communication and social interaction. Describe specific observations of eye contact quality, social reciprocity, conversational ability (or pre-conversational social communication for younger children), understanding of social cues, facial expression, gesture use, and ability to develop and maintain relationships appropriate to developmental level.

Domain B: Restricted, repetitive patterns of behaviour, interests, or activities. Describe specific observations of stereotyped or repetitive motor movements, use of objects, or speech; insistence on sameness or inflexible adherence to routines; restricted, fixated interests that are abnormal in intensity or focus; and hyper- or hypo-reactivity to sensory input.

Be specific. Rather than writing 'limited eye contact observed', describe: 'Eye contact was fleeting and primarily directed to objects of interest rather than to the examiner's face during social exchanges. When the examiner attempted to establish shared attention by pointing to a picture, the child followed the point to the object but did not look back to the examiner to share the experience.'

5. DSM-5 Criteria Mapping

Explicitly map your clinical findings to each DSM-5 criterion. This is not optional — the DSM-5 diagnostic criteria for ASD require deficits in all three areas of social communication and social interaction (Criteria A1, A2, A3) and at least two of the four restricted/repetitive behaviour criteria (Criteria B1, B2, B3, B4).

For each criterion, provide a brief statement of the evidence that supports it. This systematic approach makes the diagnostic reasoning transparent and defensible. It also ensures that the NDIS assessor can see that the diagnosis has been made according to accepted diagnostic criteria.

Additionally, specify the severity level (Level 1, 2, or 3 for each domain) as required by DSM-5, and note any specifiers (with or without intellectual impairment, with or without language impairment, associated with a known medical or genetic condition).

6. Functional Impact

This section is critical for NDIS access and school support. Document how the child's ASD-related difficulties affect their functioning in daily life:

• Home: Routines, self-care, mealtime difficulties, sleep, emotional regulation, sibling relationships
• School: Academic performance, peer relationships, ability to follow classroom instructions, participation in group activities, playground behaviour, need for adult support
• Community: Ability to participate in extracurricular activities, manage community outings (shopping, medical appointments), interact with unfamiliar adults and children

Quantify where possible. 'The child requires one-on-one adult support for all unstructured periods at school' is more useful than 'the child struggles at school'.

7. Diagnostic Formulation

State the diagnosis clearly, including the DSM-5 severity levels and any specifiers. Address any differential diagnoses that were considered and explain why they were included or excluded.

Common differentials to address include ADHD (which frequently co-occurs with ASD and should be noted if present), social communication disorder, anxiety disorders (especially social anxiety in older children), intellectual disability, and language disorders.

If co-occurring conditions are present (ADHD, anxiety, intellectual disability, specific learning disorder), diagnose these explicitly. NDIS funding and support planning benefits from a complete diagnostic picture.

8. Recommendations

Recommendations should be specific, actionable, and audience-appropriate. Group them by audience:

For the family:

• Specific therapeutic interventions recommended (speech pathology, occupational therapy, psychology) with frequency and focus areas
• Parent education resources and programmes (e.g., Early Start Denver Model for young children, Positive Partnerships for school-age children)
• Support groups and community resources

For the school:

• Specific classroom accommodations (visual schedules, quiet workspace, advance notice of transitions, modified homework expectations)
• Support for social skill development (structured playground activities, social skills groups)
• Recommended level of aide support with justification
• Suggested IEP goal areas

For NDIS:

• Recommended allied health supports and hours
• Any equipment or technology needs (e.g., AAC devices, sensory equipment)
• Support coordination needs

Medical:

• Follow-up appointments and timeframes
• Referrals to other specialists if indicated (genetics, neurology, psychiatry for comorbid conditions)
• Sleep assessment if sleep difficulties reported

The Dictation Workflow for ASD Reports

A comprehensive ASD diagnostic report following this structure is necessarily detailed. Writing it from scratch at a keyboard is time-consuming and often results in reports being delayed by weeks or months, creating bottlenecks in the practice and delaying access to support for families.

An effective dictation workflow for ASD reports works as follows:

Dictate the developmental history section immediately after the parent interview. This is when the details are freshest. A 10-15 minute dictation covering the full developmental history can replace 45-60 minutes of typing. Capture the specific ages, the direct parental quotes, and the nuanced details that are easily forgotten.

Dictate clinical observations immediately after the child assessment. Describe what you saw in real time rather than relying on memory hours or days later. Specific behavioural observations lose their precision when recalled from memory.

Dictate the formulation and recommendations last. Once you have reviewed all the information and formed your diagnostic opinion, dictate the DSM-5 criteria mapping, formulation, and recommendations.

Using an AI documentation tool like Grounded Scribe, each dictated section can be structured into formatted report sections that follow your preferred template. The result is a complete draft that requires review and editing rather than composition from scratch. Many paediatricians find this approach reduces total report time from four to five hours down to two to three hours — a meaningful saving when multiplied across dozens of reports per month.

What NDIS Planners Need from Your Report

NDIS access decisions require evidence that the child has a permanent disability that results in substantially reduced functional capacity in one or more areas. Your report should explicitly address:

• The permanence of the condition (ASD is a lifelong neurodevelopmental condition)
• The functional impact across life domains (self-care, communication, social interaction, learning, mobility, self-management)
• The level of support required (what the child cannot do independently)
• Recommended supports and their anticipated impact on functional capacity

Reports that focus primarily on clinical observations without translating them into functional language often fail to provide NDIS planners with the information they need to approve appropriate funding.

Summary

A well-structured ASD diagnostic report serves multiple audiences, maps findings to DSM-5 criteria, provides actionable recommendations, and translates clinical observations into functional language that supports NDIS access and school accommodation. The time investment is significant, but structured dictation workflows can substantially reduce drafting time while maintaining the clinical depth and specificity that these important documents demand.

Start your 14-day free trial at Grounded Scribe.

Disclaimer

*Grounded Scribe is a documentation tool that assists practitioners in structuring their clinical notes. All AI-generated content must be reviewed, edited, and approved by the practitioner before it becomes part of the clinical record. The practitioner retains full professional responsibility for the accuracy, completeness, and clinical appropriateness of all documentation.*