delivered the opinion of the Court.

This case concerns the deductibility as an expense for “medical care,” under § 213 of the Internal Revenue Code of 1954, 26 U. S. C. § 213, of rent paid by a taxpayer for an apartment in Florida, where he was ordered by his physician, as part of a regimen of medical treatment, to spend the winter months. ^[1]

[*500] The taxpayer, now deceased, was an attorney practicing law in Newark, New Jersey. In December 1953, when he was 43 years of age and had suffered four heart attacks during the previous eight years, he was advised by a heart specialist to spend the winter season in a warm climate. The taxpayer, his wife, and his three-year-old daughter proceeded immediately to Fort Lauderdale, Florida, where they resided for the ensuing three months in ah apartment rented for $1,500. Two months of the succeeding winter were also spent in Fort Lauderdale in an apartment rented for $829.

The taxpayer claimed the two rental payments as deductible medical expenses in his 1954 and 1955 income tax returns. These deductions were disallowed in their entirety by the Commissioner. ^[2] The Tax Court reversed the Commissioner’s determination to the extent of one-third of the deductions, finding that proportion of the total claimed attributable to the taxpayer’s own living accommodations. The remaining two-thirds it attributed to the accommodations of his wife and child, whose presence, the Tax Court concluded, had not been shown to be necessary to the medical treatment of the taxpayer’s illness. 33 T. C. 155.

On cross-appeals from the decision of the Tax Court, the Court of Appeals held, by a divided vote, that the full[*501] rental payments were deductible as expenses for “medical care” within the meaning of § 213. 289 F. 2d 291. Because of a subsequent contrary holding by the Court of Appeals for the Second Circuit, Carasso v. Commissioner, 292 F. 2d 367, and the need for a uniform rule on the point, we granted certiorari to resolve the conflict. 368 U. S. 912.

The Commissioner concedes that prior to the enactment of the Internal Revenue Code of 1954 rental payments of the sort made by the taxpayer were recognized as deductible medical expenses. This was because § 23 (x) of the Internal Revenue Code of 1939, though expressly authorizing deductions only for “amounts paid for the diagnosis, cure, mitigation, treatment, or prevention of disease,” ^[3] had been construed to include “travel primarily for and essential to . . . the prevention or alleviation of a physical or mental defect or illness,” Treasury Regulations 111, § 29.23 (x)-1, and the cost of meals and lodging during such travel, I. T. 3786, 1946-1 Cum. Bull. 76. See, e. g., Stringham v. Commissioner, 12 T. C. 580, aff’d, 183 F. 2d 597; Rev. Rule 55-261, 1955-1 Cum. Bull. 307.

The Commissioner maintains, however, that it was the purpose of Congress, in enacting § 213 (e)(1)(A) of the 1954 Code, albeit in language identical to that used in § 23 (x) of the 1939 Code (compare notes 1 and 3, supra,), [*502] to deny deductions for all personal or living expenses incidental to medical treatment other than the cost of transportation of the patient alone, that exception having been expressly added by subdivision (B) to the definition of “medical care” in § 213 (e)(1). Note 1, supra.

We consider the Commissioner's position unassailable in light of the congressional purpose explicitly revealed in the House and Senate Committee Reports on the bill. These reports, anticipating the precise situation now before us, state:

“Subsection (e) defines medical care to mean amounts paid for the diagnosis, cure, mitigation, treatment, or prevention of diseases or for the purpose of affecting any structure or function of the body (including amounts paid for accident or health insurance), or for transportation primarily for and essential to medical care. The deduction permitted for ‘transportation primarily for and essential to medical care’ clarifies existing law in that it specifically excludes deduction of any meals and lodging while away from home receiving medical treatment. For example, if a doctor prescribes that a patient must go to Florida in order to alleviate specific chronic ailments and to escape unfavorable climatic conditions which have proven injurious to the health of the taxpayer, and the travel is prescribed for reasons other than the general improvement of a patient’s health, the cost of the patient’s transportation to Florida would be deductible hut not his living expenses while there. However, if a doctor prescribed an appendectomy and the taxpayer chose to go to Florida for the operation not even his .transportation costs would be deductible. The subsection is not intended otherwise to change the existing definitions of medical care, to deny the cost of ordinary[*503] ambulance transportation nor to deny the cost of food or lodging provided as part of a hospital bill.” H. R. Rep. No. 1337, 83d Cong., 2d Sess. A60 (1954); S. Rep. No. 1622, 83d Cong., 2d Sess. 219-220 (1954). ^[4] (Emphasis supplied.)

Since under the predecessor statute, as it had been construed, expenses for meals and lodging were deductible as expenses for “medical care,” it may well be true that the Committee Reports spoke in part inartistically when they referred to subsection (e) as a mere clarification of “existing law,” although it will be noted that the report also referred to what was being done as a pro tanto “change” in “the existing definitions of medical care.” Yet Congress’ purpose to exclude such expenses as medical deductions under the new bill is unmistakable in these authoritative pronouncements, ibid.; cf. Budget Message of the President for the Fiscal Year 1955, H. R.[*504] Doc. No. 264, 83d Cong., 2d Sess. M17 (1954); Memorandum of Joint Committee on Internal Revenue Taxation, 1 Senate Hearings on the Internal Revenue Code of 1954, 83d Cong., 2d Sess. 24 (1954); Memorandum of the Under Secretary of the Treasury, id., at 103. It is that factor which is of controlling importance here. ^[5]

We need not consider whether we would be warranted in disregarding these unequivocal expressions of legislative intent if the statute were so written as to permit no reasonable construction other than that urged on behalf of the taxpayer. Compare Boston Sand & Gravel Co. v. United States, 278 U. S. 41, 48; United States v. Dickerson, 310 U. S. 554, 561-562; Harrison v. Northern Trust Co., 317 U. S. 476, 479. See also Association of Westinghouse Salaried Employees v. Westinghouse Elec. Corp., 348 U. S. 437, 444. Even the initial decision of the Tax Court under the 1939 Code respecting the deductibility of similar expenses under § 23 (x) recognized that the language of that statute was “susceptible to a variety of conflicting interpretations,” Stringham v. Commissioner, 12 T. C. 580, 583. The Tax Court's conclusion as to the meaning of § 23 (x) of the earlier statute which was affirmed by the Court of Appeals, 183 F. 2d 579, and acquiesced in by the Commissioner, necessarily rested on what emerged from a study of the legislative history of[*505] that enactment. So too the conclusion in this case, which turns on the construction of the identical words re-enacted as part of § 213, must be based on an examination of the legislative history of this provision of the 1954 Code. The Committee Reports foreclose any reading of that provision which would permit this taxpayer to take the rental payments for his Florida apartment as “medical care” deductions.

Reversed.