As best practice, physicians are advised to be as specific as possible when submitting ICD-9 codes. The ICD-9 codes submitted should reflect the care provided during the patient interaction, identifying the patients concerns and physician services. Where possible, use ICD-codes with 4 or 5 digits.
BC Family Doctors has created a two-page summary of common family medicine 3-digit ICD-9 codes for physicians getting started with more accurate diagnostic coding. MSP has a Guide to 3-Digit and 4-Digit Diagnostic Code Descriptions.
How many ICD-9 diagnostic codes can I submit per MSP claim?
Which ICD-9 Codes are considered for the ACG system?