Session Missing - Client Balance Statement Therabill Support Specialist January 27, 2020 16:36 Updated Follow When you try to create a statement and a session appears to be missing, there are several steps you can take to help locate them. Still have questions? Check out the article. Related articles Agency Billing Client Rates Therabill Statements: New Steps 5/20/21 Healthcheck: Payment Updates in WebPT Detected 508 - ICD9 Usage: At least one other status code is required to identify the related procedure code or diagnosis code. Comments 0 comments Article is closed for comments.