Using 6 characters for a 7 Character Code

by  Christine Woolstenhulme, QCC, QMCS, CPC, CMRS
October 16th, 2014

Don't do that!

The 7th character must always be the 7th character in the data field. If a code requires a 7th character and there is only 6 characters, a placeholder "X" must be used to fill in the empty characters.  Without the place holder, the code is considered invalid.


Incorrect codes:

 S00.00    Unspecified superficial injury of scalp

 S00.00A Unspecified superficial injury of scalp

Below is a Correct or Complete code:


Unspecified superficial injury of scalp, initial encounter



You may be using the placeholder "X" to complete a code. Be sure there are always the correct characters required for the code set you are using. 

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Using 6 characters for a 7 Character Code. (2014, October 16). Find-A-Code Articles. Retrieved from

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