dissenting.
The majority, in arriving at the conclusion that ORS 656.262 does not permit employer to deny compensation for claimant’s previously accepted degenerative back conditions, says,
“[b]y accepting claimant’s low back pain, employer accepted all the conditions that the medical evidence shows underlie the low back pain, including claimant’s preexisting degenerative back conditions. Those conditions are accepted as compensable conditions in and of themselves, independent of the back strain. * * * Employer accepted claimant’s low back pain. Under [Georgia Pacific v. Piwowar, 305 Or 494, 753 P2d 948 (1988)], employer’s acceptance encompassed each condition causing the pain. They are, in and of themselves, independently compensable because they were accepted.” 163 Or App at 196.
Nonetheless, the majority concludes,
“The statutes that employer cites in support of its position are dependent on the existence of a combined condition in the legal sense. A combined condition in the legal sense is a compensable injury that combines with a preexisting condition or conditions. ORS 656.005(7)(b)(B). Here, the accepted conditions are each of the conditions that are deemed accepted under Piwowar. Although, as a matter of fact, the preexisting conditions did combine to give rise to claimant’s need for treatment, they are compensable in their own right as a matter of law under Piwowar and may not be denied.” 163 Or App at 196-97.
*198According to the majority, what employer accepted were uncombined conditions or degenerative conditions that existed “independently.” Apparently the majority understands employer to have accepted each of those conditions separately, but not their combined effect. An example of “accepted independent conditions” would be if an employer accepted the disability from a broken leg and a broken arm arising out a work-related incident. Each acceptance of those conditions would constitute the acceptance of discrete conditions. Here, however, “low back pain” was the condition expressly accepted by the employer. Thus, the evidence is contrary to the majority’s assertion that what were accepted were independent conditions.
In addition, the underlying conditions, the lumbar sprain/strain from the work-related injury and degenerative injuries that preexisted the injury, are also deemed accepted by operation of law under the rule of Piwowar because the work-related injury and the preexisting degenerative diseases combined to cause the low back pain. A “combined condition” exists when a compensable injury combines at any time with a preexisting condition to cause or prolong disability or a need for treatment. ORS 656.005(7)(a)(B). Thus, by statutory definition, the low back pain condition accepted by employer was a “combined” condition that included the strain/sprain and the degenerative diseases. Unlike the example of an acceptance of disability from a broken leg and a broken arm, the strain/sprain and the preexisting degenerative conditions are no more “independent” of the low back pain or of each other than any other underlying conditions that combine to cause an expressly accepted condition.
The majority’s true concern arises from its unwillingness to recognize that the legislature decided in 1995 and 1997 to permit employers to deny accepted conditions when the work-related injury no longer is the major contributing cause of the combined condition. See SAIF v. Belden, 155 Or App 568, 573-74, 964 P2d 300 (1998), rev den 328 Or 330 (1999) (explaining that the purpose of the amendments to ORS 656.262(6) is to authorize a preclosure denial of an accepted combined condition when there has been the requisite change of circumstances). In substance, the majority carves out an exception to the amendments by treating *199acceptances under Piwowar differently under the amendments than other acceptances of combined conditions. Thus, it necessarily concedes that as “a matter of fact,” the underlying conditions combined to cause the accepted condition.
Further, the majority’s “matter of law” reasoning is contrary to the legislature’s intent when the legislature amended ORS 656.262 in 1995 and 1997. The majority’s reasoning must mean that the acceptance of a “combined condition” has different meanings, depending on the circumstances of the acceptance. When the issue is one of statutory interpretation, the first level of analysis is the text and context of the statutes themselves. We are bound to carry out the legislature’s intention, and we have no authority to change or add to the meanings of statutes. ORS 174.010 and ORS 174.020. Moreover, when the Supreme Court interprets a statute, that interpretation becomes part of the statute as if it were written into the statute at the time of its enactment. Holcomb v. Sunderland, 321 Or 99, 105, 894 P2d 457 (1995). There is only one definition of a “combined condition” in ORS chapter 656. See ORS 656.005(7)(a)(B). Nowhere in the statutory language that controls this issue does the distinction that the majority makes between acceptances under Piwowar and other acceptances of combined conditions appear.
The understanding that acceptances of combined conditions under Piwowar are acceptances for purposes of ORS 656.262(6)(c), which incorporates ORS 656.005(7) by reference, is further supported by the Supreme Court case law interpreting the statute. The holding in Piwowar reflects an interpretation of ORS 656.262(2) (1987).1 305 Or at 499-500. In Bauman v. SAIF, 295 Or 788, 793-94, 670 P2d 1027 (1983), the court, in interpreting ORS 656.262 (1981), held that once an employer accepts a claim, it must compensate for that claim and whether the claim turns out to have arisen from a noncompensable cause is irrelevant. Then, the court held in Barrett v. D & H Drywall, 300 Or 325, 330-31, 709 P2d 1083 (1985), that the disability from a compensable *200injury included the loss of earning capacity arising from a previously asymptomatic osteoarthritis that had become symptomatic because of the compensable injury. Next, the court held in Johnson v. Spectra Physics, 303 Or 49, 58, 733 P2d 1367 (1987), that an employer could partially deny a claim if it specifies which injuries or conditions it accepts and which it denies.
In Piwowar, the court considered its interpretations of ORS 656.262(6) in Johnson and Bauman and held that, when read together, they require the employer to compensate the claimant for the specific condition in the notice of acceptance, regardless of the causes of the condition accepted. 305 Or at 501. Thus, by accepting the condition “sore back,” after the claimant had strained her back during work, it also accepted the preexisting ankylosing spondylitis that was contributing to the condition of the sore back. The court reasoned,
“Allowing an insurer to deny compensation for a previously-accepted condition once it learns that the condition is attributable to a specific noncompensable disease opens the door to instability, uncertainty and delay. This is precisely the kind of vacillation which this court found unacceptable in Bauman[.]" 305 Or at 501 (citation omitted).
The enactment of ORS 656.262(6)(c) in 1995 reflects an intention by the legislature to permit under certain circumstances what had been forbidden before: the denial of an accepted combined condition. SAIF v. Belden, 155 Or App at 573. ORS 656.262(6)(c) now provides,
“An insurer’s or self-insured employer’s acceptance of a combined or consequential condition under ORS 656.005(7), whether voluntary or as a result of a judgment or order, shall not preclude the insurer or self-insured employer from later denying the combined or consequential condition if the otherwise compensable injury ceases to be the major contributing cause of the combined or consequential condition.”
As is evident from the above analysis, the acceptance of a combined condition under the rule of Piwowar is treated no differently by the applicable statutes from the express *201acceptance of combined conditions. When “an otherwise com-pensable injury combines at any time with a preexisting condition to cause * * * disability * * * the combined condition is compensable only [for] so long as” the compensable injury is the major contributing cause of the disability of the combined condition or the need for treatment of the combined condition. ORS 656.005(7)(a)(B) (emphasis added). Merely because the acceptance of a combined condition under Piwowar occurs by operation of law does not make it any less of a combined condition under the statutory definition. The majority errs by not giving effect to ORS 656.262(6)(c) as intended by the legislature.
The law is clear that an employer is permitted to deny an accepted combined condition when a compensable injury ceases to be the major contributing cause of the combined condition. Belden, 155 Or App at 574. The Board did not reach that issue in this case because of its conclusion that there was no combined condition. For the reasons stated above, I would remand to the Board for reconsideration of that issue.
ORS 656.262(6) (1987) provided, in relevant part: “Written notice of acceptance or denial of the claim shall be furnished to the claimant by the insurer or self-insured employee within 60 days after the employer has notice or knowledge of the claim. * * ®”