Claimant seeks review of a Workers’ Compensation Board order which affirmed the referee’s decision denying temporary total disability benefits. Claimant contends that she was entitled to them after she filed an aggravation claim because employer had knowledge of medical verification of her inability to work. ORS 656.273(6). We agree and reverse.

Claimant suffered a compensable injury to her left shoulder while working for Fairview Hospital on December 8, 1984. She was awarded 15 percent unscheduled permanent partial disability and did not return to work at Fairview or find other employment. She continued to receive treatment for her injury and obtained vocational counseling. On March 13, 1986, her treating physician, Dr. Winkler, wrote to SAIF and requested that her claim be reopened due to marked tenderness and pain in her left shoulder. On March 18, 1986, her vocational counselor made a report to SAIF which stated, in part:

“In February, [claimant], after missing a fourth appointment, indicated to me that Dr. Winkler had told her that he did not want her to participate in further vocational rehabilitation, as her back and shoulders were deteriorating and that she did not have the physical ability to return to work or to even participate in looking for work.

“7 contacted Dr. Winkler by letter and in a statement from him, he verified this recommendation. On March 17th, I notified Ms. Wilch at SAIF about this development and she recommended case closure.” (Emphasis supplied.)

SAIF denied claimant’s aggravation claim on July 22, 1986, but made no temporary disability payments during the interim. Claimant requested a hearing and the referee upheld SAIF’s denial. The referee also denied her claim for temporary total disability, because SAIF had not received medical verification of her inability to work before July 22,1986, when it denied her aggravation claim. In affirming the referee’s order, the Board explained:

“The physician’s only direct communication with SAIF referred only to the need for additional medical services. The remaining pertinent information came from a vocational provider who, because he or she was presumably not a physician, necessarily interpreted the doctor’s report as a layperson.”

*31Claimant does not dispute SAIF’s denial of her aggravation claim. She contends only that the Board erred in concluding that SAIF did not receive medical verification of her inability to work. SAIF argues that medical verification of claimant’s inability to work must come directly from Dr. Winkler. See Crooke v. Gresham Transfer, 88 Or App 246, 744 P2d 1316 (1987).

Entitlement to interim compensation in the form of temporary total disability depends on whether, before denial of an aggravation claim, there was medical verification of a claimant’s inability to work. ORS 656.273(6);1 Silsby v. SAIF, 39 Or App 555, 561, 592 P2d 1074 (1979). If the employer has notice or knowledge of verification, temporary total disability payments must begin within 14 days. ORS 656.273(6). The notification is not intended to establish a substantive right to compensability but is intended to ensure prompt payment of interim support to a worker who has filed an aggravation claim. Silsby v. SAIF, supra, 39 Or App at 562.

Under the circumstances of this case, we conclude that SAIF received adequate notice of medical verification by a physician of claimant’s inability to work. Dr. Winkler notified SAIF that claimant’s compensable injury had worsened. Five days later, her vocational counselor reported to SAIF that Dr. Winkler informed her that claimant could not work due to a worsening of her compensable injury. This was sufficient medical verification to trigger SAIF’s duty to pay temporary total disability.

Claimant next contends that she is entitled to penalties and attorney fees under ORS 656.262(10) because SAIF unreasonably failed to make the interim payments. Neither the referee nor the Board considered whether penalties and attorney fees were warranted. We therefore remand to the Board for a determination of the amount of temporary total *32disability and to determine whether SAIF’s failure to pay interim compensation justifies penalties and attorney fees.

Reversed and remanded.