Denial Code 58: Treatment Rendered in an Invalid Place of Service (POS) – Simple Guide
Denial Code 58 is a common medical billing denial. It usually means the insurance payer thinks the Place of Service (POS) entered on the claim is incorrect or inappropriate for the treatment provided.
In simple words:
✅ Service was billed
❌ But payer says “This service cannot be billed under this POS”
What Does Denial Code 58 Mean?
Denial Code 58 Description:
Treatment was deemed by the payer to have been rendered in an inappropriate or invalid place of service.
This denial happens when:
• The POS code is wrong
• Service should have been billed under a different facility setting
• Claim POS does not match payer’s records for that Date of Service (DOS)
Common Reasons for Denial Code 58
Here are the main causes:
• Wrong POS entered (Example: billed as Office instead of Hospital Outpatient)
• Payer has a paid hospital claim for same DOS
• Provider rendered service in a facility but billed as non-facility
• Coding or billing team selected incorrect POS
On-Call Scenario (Step-by-Step Call Flow)
When a claim is denied for invalid POS, follow this workflow:
Step 1: Identify Denial Details
Ask the payer representative:
- May I get the denial date?
- Could you please provide the correct place of service?
If the Rep Provides Correct POS ✅
If the payer rep shares the correct POS, continue:
- Ask: What is the time limit to send a corrected claim?
- Ask: May I have the claim number and call reference number?
- Action: Update the POS and submit a corrected claim.
Important Note (Medicare Rule)
• Medicare does NOT accept corrected claims
• Always send a fresh claim to Medicare
If the Rep Refuses to Provide Correct POS ❌
If rep refuses, follow alternate route.
Ask this question:
Could you please check, is there any paid hospital claim associated on the same DOS?
Now, there are two possibilities:
Scenario A: No Paid Hospital Claim Found
Then:
- Ask: What is the time limit to send corrected claim?
- Ask: May I have the claim number and call reference number?
Then assign claim for coding review.
Scenario B: Paid Hospital Claim Exists
Then:
- Ask: What is the POS in the hospital claim?
Then:
• Ask time limit
• Collect claim number and call reference number
This helps confirm what POS payer expects.
What to Do When Correct POS is Not Given
When payer doesn’t provide POS:
✅ Assign claim to Coding Team
• Coding team will verify documentation
• They will confirm correct POS based on treatment setting
After Coding Team Response (Next Steps)
If Coding Says POS Should Be Changed
• Update POS
• Submit corrected claim (or fresh claim for Medicare)
If Coding Says POS is Correct but Payer Disagrees
Then:
- Call payer again
- Request reprocessing
- If rep still disagrees:
• Ask for appeal details
• File an appeal with supporting documents
Key Tips to Avoid Denial Code 58
To prevent this denial in the future:
• Verify correct POS before claim submission
• Cross-check facility vs non-facility settings
• Ensure POS aligns with CPT/HCPCS and provider location
• Track DOS with any hospital/facility claims
Conclusion:
Denial Code 58 is mostly a POS mismatch issue, and it can be fixed easily if handled correctly.
Quick Summary
• Ask denial date
• Ask correct POS
• If given → submit corrected claim
• If not given → check hospital paid claim
• If unclear → send to coding team
• If payer still rejects → submit appeal




