Understanding WHODAS 2.0 in NDIS Functional Capacity Assessments

Six domains, with important NDIS distinctions

WHODAS 2.0 covers cognition, mobility, self-care, getting along, life activities and participation. These domains explore understanding and communication, moving around, personal care, relationships, domestic or work activities, and involvement in community life. They provide a broad framework, but cannot capture every detail of an individual person's circumstances.

These are not identical to the NDIS functional domains of communication, social interaction, learning, mobility, self-care and self-management. An occupational therapist needs to explain relevant connections rather than treating the categories as interchangeable. WHODAS is not a universally mandatory NDIS test, an eligibility decision or a funding formula. NDIS guidance describes functional capacity assessments as one way of providing evidence about everyday functioning.

Versions, questions and the reference period

WHO provides different versions, including shorter and longer questionnaires and self-administered, interview and proxy formats. The version chosen should suit the assessment purpose and the person's circumstances. The clinician should explain who is answering, why that format is appropriate and any limitations affecting interpretation.

WHODAS generally asks about difficulties over the previous 30 days. Follow the instructions for the selected version rather than trying to answer for your worst-ever day or an imagined unsupported situation. Explain separately if that period was unusual, if activities were avoided, or if substantial assistance was already in place. Those details help the clinician interpret the responses without silently changing the standardised questions.

A score needs its scoring method and context. Different versions and scoring approaches should not be casually compared. A total cannot explain which tasks require assistance, how often help is needed or whether a particular support is suitable.

Consent and accessible participation

Before starting, you should understand the purpose of the questionnaire, how information will be used and who may receive the report. Ask what happens if you decline a question or prefer another way of contributing. Consent to an assessment is not automatic permission to contact everyone involved in your care.

Accommodations might include an interpreter, accessible written information, communication supports, breaks or an appointment at a more manageable time. Ask the clinician to distinguish access adjustments from changes that affect standardised administration. Any departure from the instructions should be documented, with its implications explained rather than hidden.

A chosen supporter can help you participate without taking over your answers. If another person provides a proxy response, their perspective should be identified as such. Different accounts can reveal different settings and demands; disagreement is something to explore respectfully, not proof that someone is unreliable.

Why everyday evidence still matters

A sound functional assessment triangulates information: it considers several sources together instead of relying on one measure. Depending on consent and relevance, these may include your interview, observation, existing reports, activity records and information from people who know your routines. Each source has strengths and limitations.

The report should distinguish completing a task independently from completing it with reminders, supervision, equipment or hands-on assistance. It should also consider safety, time, consistency and after-effects. Managing an activity once in a quiet appointment may not show whether it is sustainable throughout an ordinary week.

Strengths belong in this account. Familiar routines, effective technology, interests and supportive environments can explain what works. Success achieved through support does not mean the support is unnecessary. Equally, recommendations should be justified by individual evidence, not assumed from a questionnaire result. No WHODAS score predicts a particular NDIS budget.

Practical preparation for your appointment

Ask which version will be used, how long the appointment may take and what accessibility arrangements are available. Bring relevant reports if you have them, but check before paying for additional assessments. Explain the purpose of the report and any questions you want it to address.

Brief notes about ordinary routines can help. Record what you manage, what help you receive, what you avoid and how functioning changes across settings. Include the contribution of unpaid support and any recovery time after activities. You do not need a polished diary or to rehearse particular responses. Accurate, specific information is more useful than trying to achieve a certain score.

Two frequently asked questions

Does a higher WHODAS score mean more NDIS funding? No. A questionnaire result does not translate into funding or guaranteed supports. Decisions involve the relevant NDIS requirements and the available evidence about the person's circumstances.

What if the questionnaire misses an important difficulty? Tell the clinician. Sensory demands, fluctuating symptoms, support already provided and delayed consequences may need separate explanation. The report should acknowledge the questionnaire's limits and describe additional evidence, rather than forcing every experience into a score.

Discussing an assessment and next steps

To discuss daily functioning or disability-related support needs, contact Today & Tomorrow Allied Health Services to discuss an appropriate assessment. Confirm the scope, suitability, fees and availability before proceeding. Funding decisions and plan permissions should be clarified with the NDIA; an assessment does not guarantee funding.

This article provides general information, not individual clinical or funding advice.