Update your resume TODAY
Update your resume TODAY to at least include the name of the company, address, phone number, your title and general job duties.
If you like, keep a separate folder where you list your job duties / experiences in more detail. This is not something you would send to a prospective employer, but is a way of keeping your own personal record of what you have done or been exposed to. When you update your resume you can summarize this.
I look at my resume every 6 months or so and update as needed. Sometimes it doesn't need anything. Sometimes the focus has shifted and I want to be sure to emphasize something slightly different. I have done this my entire career. (I graduated from college in the 1970s.)
There are lot of reasons you might need a current resume besides job hunting. You may be running for a position as an officer of your local AAPC chapter and they want a resume. You may be asked to participate on the board of your child's school, and you need a resume. You might be perfectly happy in your job, but get contacted by a head hunter with an even better offer -- you'll need an up-to-date resume.
Good luck to you!
F Tessa Bartels, CPC, CEMC