BILLING REFERENCE

Place of Service (POS) Codes Commonly Disputed

The place-of-service code tells the payer where care was delivered, and it directly affects the fee schedule (facility vs. non-facility rate) and whether a service is covered. A wrong POS is a common, quiet source of underpayment and denial — especially with telehealth, where the rules have shifted repeatedly. The POS meanings below are the standard CMS definitions and are stable. Telehealth POS policy in particular is payer- and date-specific, so confirm current guidance for the date of service.

POS	Meaning	Why it's disputed
11	Office	Pays the non-facility (higher) rate — mis-set to a facility POS underpays the practice
02	Telehealth provided other than in the patient's home	Telehealth POS rules have changed repeatedly; wrong code triggers denials or facility-rate cuts
10	Telehealth provided in the patient's home	Newer telehealth code; payer adoption and rate treatment vary — confirm per payer and date
19	Off-campus outpatient hospital	Facility vs. off-campus distinction affects payment and site-of-service edits
20	Urgent care facility	Payer site-of-service edits and coverage differ from an office visit
21	Inpatient hospital	Drives facility payment and global/bundling rules; miscoding vs. outpatient causes denials
22	On-campus outpatient hospital	Facility rate applies; frequently confused with POS 11 (office) and with 19
23	Emergency room — hospital	Coverage, level-of-care, and payment edits differ sharply from other settings

What to do with this

POS drives the fee schedule: office (11) pays the non-facility rate, facility POS codes pay less to the professional side because the facility bills separately — a wrong POS is a silent underpayment.
Telehealth is the highest-risk area: 02 vs. 10 (and payer-specific rules) change by payer and by date of service, so verify current policy rather than reusing last year's setup.
Reconcile the POS on the claim against where care was actually delivered — a mismatch is an easy fix that recovers real dollars on already-paid claims.
Facility vs. non-facility mistakes often show up as underpayments, not outright denials, so they hide unless you compare paid amounts to the expected rate for the correct POS.

More billing references

Timely Filing Limits by Payer →Appeal Deadlines by Payer and Level →Healthy RCM Benchmarks →Denial Rate Benchmarks →CPT Modifier Quick Reference →Medicare Appeal Levels (Fee-for-Service) →CARC Group Codes (CO, PR, OA, PI) →

Volari checks the place-of-service code against the expected rate and the payer's site-of-service edits, catching POS-driven underpayments and denials — including the telehealth mismatches that quietly cut payment without ever looking like a denial.

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