OPINION BY
United States Steel Corporation (Employer) petitions for review from an order *819of the Workers’ Compensation Appeal Board (Board) that affirmed a Workers’ Compensation Judge’s (WCJ) decision to deny Employer’s Petition for Review of Utilization Review Determination (UR Review Petition) and concomitantly assessed attorney’s fees against Employer for unreasonable contest.
Peter Luczki (Claimant) was injured while in the course and scope of his employment on March 2, 2000, when he fell after breaking through a step to a remote crane that Claimant operated. An Agreement for Compensation executed by the parties, dated March 14, 2002, described Claimant’s injury as a low back strain.
Beginning on June 2, 2000, Claimant began receiving chiropractic treatment from Robert Homonai, D.C. (Dr. Homo-nai), including intersegmental traction and myofascial release. From August 2, 2000, and ongoing, Claimant received treatment from Dr. Homonai two times per month, with more treatment periodically occasioned by temporary flare ups of Claimant’s symptoms.
On August 29, 2000, Employer filed a Utilization Review (UR) Request pursuant to Section 306(f.l)(6) of the Workers’ Compensation Act (Act),1 77 P.S. § 531(6), seeking review of the reasonableness and/or necessity of Claimant’s chiropractic treatments from August 2, 2000, ongoing. The UR Request was assigned to Louis Camilli, D.C., who issued a UR Determination dated October 4, 2000, and concluded that Dr. Homonai’s treatments of Claimant, from August 2, 2000, ongoing and at a rate of two treatments per month, were reasonable and necessary. Pursuant to Section 306(f.1)(6)(iv) of the Act, Employer timely filed its UR Review Petition on November 17, 2000.2
*820Before the WCJ, both parties, represented by counsel, presented medical evidence regarding the reasonableness and necessity of Claimant’s treatments. The WCJ found Claimant’s medical experts more credible than those of Employer, and ultimately concluded that Employer failed to show that the treatments at issue were neither reasonable nor necessary, and concomitantly denied Employer’s UR Review Petition. The WCJ then addressed whether Employer’s contest of the UR Determination had a reasonable basis under the Act. The WCJ noted that the only medical evidence offered by Employer on the issue of the treatment was obtained by Employer on February 15, 2001, some three months after Employer filed its UR Review Petition. The WCJ found that Employer’s contest of the UR Review Petition was not reasonable at the time of the contest. The WCJ, by order and decision dated June 10, 2002, awarded attorney’s fees for the UR Review Petition contest in favor of Claimant and against Employer.
Employer timely appealed the WCJ’s order to the Board, which heard argument on the matter without receiving any additional evidence. By order dated January 5, 2004, the Board affirmed.3 Employer now petitions this Court for review of the Board’s order.4
Employer presents the following issue for review: whether the Board erred as a matter of law when it affirmed the WCJ’s award of attorney’s fees for an unreasonable contest. Employer’s argument is based on the fact that, while Employer did not have a medical opinion on which to base its contest at the time it filed its UR Review Petition, the Act mandates that the Petition be filed within thirty days of Employer’s receipt of the UR Determination, and the Act does not expressly state that the challenge be based upon medical evidence at the time of filing.
Section 306(f.l)(6) of the Act, 77 P.S. § 531(6) controls disputes over the reasonableness or necessity of treatments received by a claimant in a Workers’ Compensation claim. Employer recognizes that precedent has long established that Workers’ Compensation contests will be held unreasonable where an employer does not possess a medical opinion when the contest is filed. Additionally, Employer accurately notes that this precedent, addressing foundational medical evidence, has never been applied to UR Review Petitions under Section 306(f.l)(6) of the Act. Employer emphasizes that Section 306(f.l)(6) does not expressly require a medical opinion as a prerequisite to filing a UR Review Petition. Employer further argues that Section 306(f.l)(6) mandates that a UR Review Petition be filed within thirty days after the receipt of the UR Determination — a time period that does not facilitate the timely acquisition of a medical opinion.
Section 440(a) of the Act, 77 P.S. § 996(a), provides that where a claimant succeeds in a litigated case reasonable counsel fees are awarded against the employer, as a cost, unless the employer meets its burden of establishing facts sufficient to prove a reasonable basis for the contest. Weiss v. Workmen’s Compensation Appeal Board (Birch), 106 Pa.Cmwlth.361, 526 A.2d 839, petition for al*821lowance of appeal denied, 517 Pa. 612, 536 A.2d 1335 (1987). This section is intended to deter unreasonable contests of workers’ compensation claims and to ensure that successful claimants receive compensation, undiminished by the costs of litigation. Poli v. Workmen’s Compensation Appeal Board (Arlyn Printing & Advertising Co.), 34 Pa.Cmwlth.630, 384 A.2d 596 (1978).
A reasonable contest is established when medical evidence is conflicting or susceptible to contrary inferences, and there is an absence of evidence that an employer’s contest is frivolous or filed to harass a claimant. Wertz v. Workmen’s Compensation Appeal Board (Department of Corrections), 683 A.2d 1287 (Pa.Cmwlth.1996), petition for allowance of appeal denied, 547 Pa. 747, 690 A.2d 1165 (1997). Our Courts have long held that an employer’s contest of a claim under the Act is not reasonable, and that a claimant is entitled to an award of counsel fees under Section 440(a) of the Act, where the employer bases its contest on medical evidence obtained after the employer filed its contest. Jones & Laughlin Steel Corp. v. Workmen’s Compensation Appeal Board (White), 92 Pa.Cmwlth.318, 500 A.2d 494 (1985). Whether the evidence of record establishes a reasonable contest under the Act is a question of law fully subject to review by this Court. Yeagle v. Workmen’s Compensation Appeal Board (Stone Container Corp.), 157 Pa.Cmwlth.597, 630 A.2d 558 (1993).
Employer correctly notes that the General Assembly has provided a narrow thirty day window of Section 306(f.l)(6) of the Act, during which a UR Review Petition must be filed, and that this mandatory provision was not at issue in any prior holding, that if an employer does not have medical evidence in hand the challenge is unreasonable. The General Assembly, Employer argues, did not intend to impose penalties or fees upon a challenge to a UR Determination, or it would have provided so in Section 306(f.l)(6). This Court must disagree.
Section 440(a) of the Act, 77 P.S § 996(a), expressly states that a claimant shall be awarded a reasonable amount for, inter alia, attorney’s fees, in the absence of a reasonable contest by an employer “[i]n any contested case where the insurer has contested liability in whole or in part.” (emphasis added). Here, it is undisputed that Employer contests its liability for the treatment in this case. Further, applying the rules of statutory construction, as suggested by Employer, reveals that the General Assembly intended no exceptions to Section 440(a)’s clear and express rule, other than the sole one presented, namely where the challenging party establishes a reasonable basis for the contest.
It is axiomatic that under Section 1921(a) of the Statutory Construction Act of 1972, 1 Pa.C.S. § 1921(a), “the object of all interpretation and construction of statutes is to ascertain and effectuate the intention of the General Assembly.” Gallie v. Workers’ Compensation Appeal Board (Fichtel & Sachs Industries), 580 Pa. 122, 129, 859 A.2d 1286, 1290 (2004) (citations omitted). Further, it has repeatedly been recognized that the Act must be liberally construed to effectuate its humanitarian purposes, that any borderline interpretations be resolved in favor of injured employees, and that the ultimate goal of the Act is to make injured employees whole. Id. This Court observes that Section 440(a) contains no ambiguities whatsoever in its application to any contest of liability, in whole or in part, brought under the Act. Contrary to Employer’s argument, had the General Assembly not intended Section 440(a) to apply to contests of UR Determi*822nations under Section 306(f.l)(6), it would have expressly stated such an exception. Because Section 440(a), by its own express and unambiguous terms, applies to any contest of liability, this Court must logically conclude that Section 440(a) does apply to UR Determination Review proceedings under Section 306(f.l) of the Act. As a result, the Board did not err as a matter of law in applying Section 440(a)’s mandate to the UR process.
Employer also presents a related statutory construction argument, asserting that Section 306(f.l)(6)’s narrow filing window renders it impossible for any employer to receive a UR Determination, schedule an Independent Medical Examination (IME),5 await a claimant’s attendance, and the subsequent receipt of the IME opinion, and still file a UR Review Petition within the required thirty days. Employer argues that such practical impossibility creates an absurd and unreasonable construction of the Act should this Court hold that an employer is required to meet these procedural hurdles within the allotted thirty day time frame for filing a UR Review Petition, or be forever barred from appealing the UR Determination. Employer argues that a UR Review Petition is the sole mandated choice to challenge a claimant’s treatment.
This Court must reject Employer’s argument, noting that an appeal from an adverse UR Determination is not the exclusive “choice” for an employer’s review of a claimant’s treatment. Employer’s argument ignores the fact that the UR Determination itself is a review of that treatment, a “choice” available to any employer (and a choice made by this Employer), regardless of the employer’s lack of any medical evidence to support the challenge. It is only when an employer disagrees with that initial impartial UR Determination and elects to further challenge that the issue of a reasonable basis comes into play under Section 440(a) of the Act.
Clearly, Section 306(f.l)(6) allows any employer to challenge the reasonableness and necessity of a claimant’s medical treatment without any requirement that the initial challenge be founded on medical evidence possessed by the challenger. Section 306(f.l)(6)(i) expressly requires that a Utilization Reviewer in the first instance be licensed in the same profession and/or have the same specialty as the provider whose treatment is being challenged, and further requires that said reviewer be expressly and previously approved for such third party review.6 As the first step in the UR process, an initial UR under Section 306(f.l)(6)(i) is an employer’s exclusive procedural path to obtain an initial review of a claimant’s treatment.
However, Employer fails to recognize that this exclusive first step in challenging a claimant’s treatment carries no eviden-tiary requirements whatsoever on an employer’s part, and that no contest of a claimant’s treatment may be found to be unreasonable in this first instance of third party review under Section 306(f.l)(6). Clearly, an initial UR under Section 306(f.1)(6)(i) is not, technically, a “contest” for purposes of Section 440(a). An initial UR, rather, as stated in Section 306(f.1)(6)(i), is a determination by an impartial third party, and is not driven by the presentation of evidence by either par*823ty, or reviewed by a WCJ. As such, Section 440(a) is inapplicable to an initial UR by its own plain terms, and hence no reasonable contest basis analysis, or potential attorney’s fees award, applies.
Unlike the first step, an appeal from an initial UR Determination under Section 306(f.1)(6)(iv) of the Act is clearly a “contest” disputing liability, because an appeal is brought by petition and, thereafter, assigned to a WCJ for hearing and the receipt of evidence and argument. As such, Section 440(a), and a reasonable contest basis analysis, must apply. It is an employer’s continued pursuit, under Section 806(f.1)(6)(iv), of a challenge to a claimant’s treatment which triggers an examination of the reasonableness of the employer’s contest and the concomitant requirement that the contest have some basis beyond the employer’s bare assertions.
Simply put, Section 306(f.1)(6)(i) gives every employer the right to review a claimant’s treatment notwithstanding the existence of any evidentiary basis. However, an employer’s choice to initiate an additional and continuing contest of that first review must have an evidentiary basis, or be subject to an award of attorney’s fees under Section 440(a) in light of the Act’s ultimate goal of making injured employees whole. This Court finds this approach is neither absurd nor unreasonable, and is consonant with Section 440(a)’s clear application to any contest of liability under the Act, and consistent with our Courts’ treatment of other liability contests under the Act.
This Court has consistently held that a reasonable contest is one which is prompted by a genuinely disputed issue, which genuine dispute can be found where the medical evidence is conflicting or susceptible to contrary inferences. LaChina v. Workmen’s Compensation Appeal Board (Dana Corp.), 664 A.2d 204 (Pa.Cmwlth.1995). For an employer to establish that its contest is reasonable, it must have in its possession at the time of the decision to contest, or shortly thereafter, medical evidence supporting that position. Id. at 206, citing Yeagle, 630 A.2d at 560. See Boyer v. Workers’ Compensation Appeal Board (First Capital Insulation, Inc.), 740 A.2d 294 (Pa.Cmwlth.1999) (unreasonable contest where employer had no medical evidence at the time employer chose to contest its liability; post hoc medical examination did not cure this defect); Lewistown Hospital v. Workmen’s Compensation Appeal Board (Kuhns), 683 A.2d 702 (Pa.Cmwlth.1996) (award of attorneys’ fees for unreasonable contest depends upon whether contest was prompted to resolve a genuinely disputed issue) (emphasis added); Jones & Laughlin (after-acquired medical evidence did not convert an unreasonably initiated contest into a reasonable one).
Jones & Laughlin, and its progeny, have long established that the pursuit of a claim by an employer, contesting liability under the Act, is not reasonable where the employer lacks a scintilla of medical evidence to support its contest, until after the contest is initiated. This Court has determined that an employer’s sole reliance on such after-acquired evidence establishes that the pursuit of such a contest “was already a fait accompli ” before any such medical basis existed, and clearly establishes that the contest was not brought “for the resolution of any generally disputed liability” as required under Section 440(a). Jones & Laughlin, 500 A.2d at 495. While Jones & Laughlin, and other precedent, addressed contests other than those involving UR procedures, applying the rule to UR contests clearly conforms with Section 440(a)’s mandate, and with the Act’s purposes.
*824Also, instructive, this Court has examined Workers’ Compensation contests that were initially reasonable, but became unreasonable when purposefully pursued despite the Employer’s lack of any medical evidence to reasonably justify continuation. This Court has maintained that if an employer’s contest of liability is initially founded upon an evaluation that the injury was not work-related, that contest is indeed initially reasonable; however, the employer’s continuation of that contest becomes unreasonable when the employer’s own medical expert later finds work relatedness. Yeagle is persuasive:
To allow after-acquired medical opinions to justify an employer’s contest would allow the decision to deny compensation to be based not on what a medical opinion is, but on the hope that some kind of medical evidence can be elicited prior to hearing.
Here, what might have begun as a reasonable contest became unreasonable ... once [employer] continued to contest the claim without any factual basis in the hope that it could later find a medical witness who would provide it with the testimony to rebut [claimant's proof.
Yeagle, 630 A.2d at 560.
As in Yeagle, Employer’s initial “contest” here was reasonable — an employer always is entitled to challenge the reasonableness and necessity of a claimant’s treatment without any evidentiary basis under Section 306(f.1)(6)(i), by request for review by an impartial third-party UR organization. Again, as in Yeagle, Employer’s choice to continue the contest and file a UR Review Petition, without any reasonable basis, and solely on the hope that it may later produce such a basis, is not reasonable.
As generally stated, this “reasonable basis” precedent indeed applies to an employer’s continued contest of the reasonableness and necessity of treatment where an employer challenges a UR Determination without any evidentiary basis. A reasonable contest must be prompted by a genuine dispute, one based upon medical evidence that supports a contest, and possessed by Employer at the time the choice is made to file the UR Review Petition. LaChina; Yeagle; Jones & Laughlin.7
*825Employer next contends that Claimant’s own delay in attending Employer’s requested IME within the thirty day UR Determination appeal window excuses *826Employer’s continuation of its contest without any medical basis. Employer contends that, had Claimant attended an IME within that thirty day period, Employer would have had a medical opinion to continue the contest, prior to filing the UR Review Petition. As the Board observed:
What must be remembered is that [Employer] invoked the utilization review process, apparently without any back-up evidence to contest the reasonableness or necessity of Claimant’s treatment. When this process failed to give [Employer] the UR Determination it was hoping for, it continued the process by filing a UR Determination [Review Petition] again without supporting evidence in hand. Consequently, it assumed the risk of attorney’s fees if the [WCJ] ultimately rejected its later-acquired medical evidence.
We reject [Employer’s] alternative argument that Claimant’s failure to attend an [IME], scheduled within the statutory 30 day window for seeking review of the UR Determination, somehow excuses its lack of medical evidence to support its fifing of a UR [Review] Petition. First, [Employer] fails to substantiate its argument with legal authority. Second, [Employer] started the whole utilization review process without supporting medical evidence, and cannot simply shift the blame onto Claimant when it is unable to have an IME completed within 30 days of receiving an adverse UR Determination. Third, nothing in the Act required [Employer] to have an IME to establish a reasonable contest. A medical opinion based on a records review probably would have sufficed.
Board Opinion at 5. This Court agrees with the Board.
There are two dispositive and distinctive reasons for requiring a medical opinion to establish a reasonable challenge. First, Claimant began the treatment at issue on June 2, 2000. Employer chose not to pursue any medical opinion whatsoever as to the reasonableness and/or necessity of that treatment at any time prior to Employer’s receipt of the adverse UR Determination, on October 4, 2000. Following Employer’s receipt of the UR Determination, Employer began its first and only pursuit of medical evidence to support its challenge. That pursuit did not yield a medical opinion supporting its contest until February 15, 2001. Notwithstanding the WCJ’s failure to make any findings regarding which party was responsible for the delay in the execution of the IME, Employer chose to initially invoke the UR process, chose not to pursue supporting medical evidence, and continued not to pursue such evidence during the UR Determination process, despite its medically unsupported challenge to the reasonableness of Claimant’s treatment. While it was Employer’s right under the Act to invoke the initial UR process without any medical evidence, the foregoing analysis of the Act and caselaw make clear that Employer’s decision to continue the contest in the absence of any medical evidence was unreasonable.8
Second, this Court agrees with the Board that nothing in the Act or our precedent may be construed to require an IME as the sole sufficient medical evidentiary basis for a continuing challenge to the reasonableness of the treatment. As not*827ed, Employer had sufficient time to evaluate whether it was medically reasonable to invoke the UR process. Similarly, Employer had sufficient time to pursue medical evidence, other than an IME, to support its decision to continue its challenge of the UR Determination prior to the expiration of the statutory thirty day appeal period. Employer repeatedly chose not to pursue medical evidence that would establish a reasonable basis for a continued challenge. This clearly leads to the conclusion that the present contest was not prompted by an attempt to resolve a genuinely disputed issue. LaChina; Boyer, Lewistown Hospital.
Contrary to Employer’s assertion, Claimant had no control over when Employer would pursue a medical opinion on the reasonableness and necessity of Claimant’s treatment. Employer chose not to obtain any medical evidence until well after it challenged Claimant’s treatment, via the initial UR request and Employer’s subsequent UR Review Petition. Particularly where the UR Determination itself was an independent, objective medical opinion provided to Employer at its request, which provided no basis for a continuation of Employer’s contest. Employer still chose to proceed.
Finally, this Court must address Claimant’s request for attorney’s fees for its defense of the present appeal by Employer pursuant to Pa.R.A.P. 2744.9 Claimant argues that Employer’s appeal was dilatory and frivolous, in that Jones & Laughlin and its progeny clearly establish that any contest under the Act that is based solely upon after-acquired medical evidence is unreasonable. However, because Employer’s present appeal presents a narrow issue of first impression involving UR proceedings, this Court denies Claimant’s request for attorney’s fees under Pa. R.A.P. 2744.
Accordingly, this Court affirms.
ORDER
AND NOW, this 2nd day of December, 2005, the order of the Workers’ Compensation Appeal Board in the above-captioned matter is affirmed.