Posted in Uncategorized Medical Record Retention Time Frame Author: Seymore Bones Published Date: August 21, 2020 Leave a Comment on Medical Record Retention Time Frame TMB Rule 165.1(b) Minimum of 7 Years From Anniversary Date of Last Treatment Patient younger than 18? Keep until 21 OR for 7 years from the date of last treatement (whichever one is longer). Civil, criminal, administrative related medical records keep if case is not resolved. Applies to electronic or paper OB guidelins baby turns 21, but check with liability carrier. Author: Seymore Bones