Billing

Place of Service 11 (Office)

Place of service code for services furnished in a physician's office or other freestanding outpatient setting.

1 min read · Last reviewed May 23, 2026

At a glance

Category
Billing
Primary sources
2
Workspace handoff
revenue audit

Where this comes up

This shows up in revenue-cycle work — claim scrubbing, charge entry, posting, A/R follow-up, and month-end close. Billers and practice managers hit this term when reconciling a payment, working a denial queue, or auditing why a claim aged past 60 days.

Full definition

What it is in practice

CMS POS POS 11 triggers the non-facility PE component of the PFS, generally yielding higher physician payment than POS 22 (hospital outpatient).

How it shows up in your practice

Verify POS for each clinic location. Provider-based hospital outpatient departments must use POS 22, not 11.

Sources

Take it into the workspace

Audit POS 11 vs 22 in Revenue Audit

Open revenue audit
Authored by D3rx

D3rx is a healthcare-billing and compliance research aid maintained by D3rx Inc. Articles are drafted by an LLM (Anthropic Claude) against primary HHS, OCR, CMS, eCFR, NIST, and state-regulator publications, and reviewed for restraint and source fidelity by the D3rx team.

Reviewer status: a named credentialed reviewer (CHC, CHPC, or healthcare attorney) is being engaged. Until that engagement is finalized, this page does not claim credentialed review.

This glossary entry is a research aid for billing and compliance staff. It does not provide legal, medical, or financial advice and does not replace counsel. References cited link to primary sources at HHS, OCR, CMS, eCFR, NIST, and the relevant payer or industry body.