effects of the injury. ...” In ease of the employer’s “neglect or refusal reasonably to do so,” the section provides, “the employer is liable for the reasonable expense incurred by or on behalf of the employee in providing treatment.” “Controversies . . . arising under this chapter shall be determined by the commission. ...” (§4604.)
The Legislature placed the exclusive power of enforcement of these obligations in the Industrial Accident Commission. Labor Code, section 5300, provides, “All the following proceedings shall be instituted before the commission and not elsewhere, except as provided in Division 4.
“ (a) For the recovery of compensation, or concerning any right or liability arising out of or incidental thereto.
“(b) For the enforcement against the employer or an insurer of any liability for compensation imposed upon him by this division in favor of the injured employee. ...” Section 5301 again explicitly states the commission commands “full power, authority and jurisdiction to try and determine finally all the matters specified in Section 5300. ...” Relating back to the above quoted sections 4600 and 4604, pertaining to the obligation to provide medical care, section 5304 gives the commission “jurisdiction over any controversy relating to or arising out of sections 4600 to 4605 inclusive. ...”
This correlation of rights and exclusive remedies of enforcement through the commission has, of course, found articulation in the eases. We initially consider four decisions which hold that the employer who fails to provide medical treatment must pay the costs of such care procured by the employee. Although we recognize that these cases do not reach our specific problem, that is, the liability of the employer for the consequences of such failure in the form of a temporary injury becoming permanent, the cases do define the nature of the obligation and the means of its enforcement.
Pacific Indem. Co. v. Industrial Acc. Com. (1948), 85 Cal.App.2d 490 [193 P.2d 117], declares medical treatment is a “benefit” under the act; covered as compensation under Labor Code, section 3202, and therefore exclusively within the jurisdiction of the commission. Union Iron Wks. v. Industrial Acc. Com. (1922), 190 Cal. 33 [210 P. 410], upheld the commission’s award of the costs of an operation to an injured employee who, upon refusal of surgery by the employer’s physicians, underwent successful surgery by a doctor of his own choice. The court held that such failure of “petitioners’