It seems that the employer can consider dedcution u/s. 80DDB :
SECTION 192 OF THE INCOME-TAX ACT, 1961 - DEDUCTION OF TAX AT SOURCE - SALARY - INCOME-TAX DEDUCTION FROM SALARIES UNDER SECTION 192 DURING THE FINANCIAL YEAR 2012-13 CIRCULAR NO. 8/2012 [F.NO. 275/192/2012-IT(B)], DATED 5-10-2012
5.5.8. Deduction in respect of medical treatment, etc. (Section 80DDB): Section 80DDB allows a deduction in case of employee, who is resident in India, during the previous year, actually paid any amount for the medical treatment of such disease or ailment as may be specified in the rules HDD (1) (see Annexure) for himself or a dependant. The deduction allowed is equal to the amount actually paid or Rs. 40,000 whichever is less. Further the amount paid should also be reduced by the amount received if any under insurance from an insurerer or reimbursed by an employer. In case of a senior citizen (an individual resident in India who is of the age of sixty years or more at any time during the relevant previous year) the amount of deduction allowed is Rs. 60,000/-. DDO must ensure that the employee furnishes a certificate in Form 10-I from a neurologist, an oncologist, a urologist, nephrologist, a haematologist, an immunologist or such other specialist, as mentioned in proviso rule 11(2) of the Rules. For the purpose of this section in the case of an employee "dependant" means individual, the spouse, children, parents, brothers and sisters of the individual or any of them,