CPT modifier
Modifier 99: Multiple modifiers
Modifier 99 is a CPT modifier. In plain terms: The claim line needs more modifiers than the form has room for.
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- Modifier
- 99
- Type
- CPT (Level I) modifier, maintained by the AMA
- Plain description
- The claim line needs more modifiers than the form has room for.
- How it is used
- Some payers want 99 in the first position with the full list in the notes.
- Claim form
- CMS-1500 item 24D, up to four modifiers per line. 837P SV101-3 to SV101-6.
The CPT descriptor is AMA copyright and is not shown here. The description above is written by Rivvi. Read the CMS guidance linked above for Medicare's rules.
Multiple procedures and modifiers
Related modifiers
Related pages
- All CPT and HCPCS modifiersA to Z list
- CMS-1500 claim formModifiers go in item 24D
- Denial code CO-4Modifier missing or does not fit the code
- Denial code CO-182Modifier invalid on the date of service
- Denial code CO-97Included in another service
- Denial code CO-236Procedure or modifier pair not compatible
- HCPCS Level II code lookup
- Denial and remark codes
Questions
What does modifier 99 mean?
Modifier 99 is a CPT modifier. In plain terms: The claim line needs more modifiers than the form has room for.
Is modifier 99 a CPT or a HCPCS modifier?
99 is a CPT (Level I) modifier. The AMA maintains CPT modifiers. Two-character codes with a letter, such as GT or XU, are HCPCS Level II modifiers from CMS.
Where does modifier 99 go on a claim?
On the CMS-1500 it goes in item 24D next to the procedure code. Each line holds up to four modifiers. On an 837P it goes in SV101-3 to SV101-6.
When is modifier 99 used?
Some payers want 99 in the first position with the full list in the notes.
What denial comes back when a modifier is wrong?
A missing or mismatched modifier often comes back as CARC 4. A modifier that was not valid on the date of service comes back as CARC 182. A bundling edit the modifier should have bypassed comes back as CARC 97 or 236.