claim in sec 80dd

1. Yes for amount spent on his treatment or medical insurance premium.

2.  You will require supporting bills of treatment & nursing for the claim

3. Medical certificate from Neurologist in prescribe form is required for claim u/s. 80DD. [as per rule 11A] produced as below....

11A. (1) For the purposes of clause (e) of the Explanation to sub-section (4) of section 80DD and clause (d) of the Explanation to sub-section (2) of section 80U, the medical authority for certifying "autism", "cerebral palsy", "multiple disabilities", "person with disability" and "severe disability" referred to in clauses (a), (c), (h), (j) and (o) of section 2 of the National Trust for Welfare of Persons with Autism, Cerebral Palsy, Mental Retardation and Multiple Disabilities Act, 1999 (44 of 1999)60, shall consist of the following,—

(2) For the purposes of sub-section (4) of section 80DD and sub-section (2) of section 80U, the assessee shall furnish along with the return of income, a copy of the certificate issued by the medical authority,—

(3) Where the condition of disability is temporary and requires reassessment after a specified period, the certificate shall be valid for the period starting from the assessment year relevant to the previous year during which the certificate was issued and ending with the assessment year relevant to the previous year during which the validity of the certificate expires.]

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Most important is certificate of the specialist. Once the disability is certified, the bill for nursing are not that important, and hence that part is ignored. But under scrutiny such details are asked for, so any such evidences like salary paid to nurse/helper or fees paid to any professional for its day to day care or check-up etc.... does help. 

Now you are not required to attach any such documents alongwith ITR, but to keep in records for producing the same whenever asked for.

In any case it should be justifiable as nursing expenditures....

Most Welcome .......