My reading indicates Calif Pending Cases are actually delays in reporting to the media. That could be wrong, but it's the info I found.
Are you referring to pending results from testing? CA has just set up a task force to improve delays. According to this article from 4/2/20 about 60,000 test results are pending, with 65% of tests unreturned. Partially explained by backlog at Quest Diagnostics.
California launches task force to deal with staggering testing backlog