Yes. Be sure to describe the nature of the disruption to your research in your ESI extension request. We suggest you submit the request once you know how much research time was lost, unless your upcoming application deadline is imminent and an ESI extension is urgently needed. In this case you would be able to submit another extension once you know the full extent of the time lost. Check out this handy chart that breaks down what can or cannot impact your ESI status.
NIH recognizes that a lot can happen to interrupt the 4-year K99 eligibility window. Since one of the most popular reasons for extension requests involve childbirth, NIH will approve an extension of one year for childbirth, consistent with the NIH Extension Policy for Early Stage Investigator Status (ESI), effective immediately. Men, those adopting children, and same-sex partners of individuals giving birth can also apply for an extension.
NIH recognizes that a lot can happen to interrupt the ten-year eligibility window of your Early Stage Investigator (ESI) status, such as family care responsibilities, military service, medical concerns, and more. While you may currently request an extension of that ten-year period by completing an Extension Request Form, the process for requesting an extension of ESI status will soon be moving to the eRA Commons.