---
title: What is the guidance for MC055 (Procedure Code) for institutional claims?
description: MC055 is required for outpatient claims. Inpatient procedure codes should be supplied in column MC058.
url: "https://civhc.org/docs/what-is-the-guidance-for-mc055-procedure-code-for-institutional-claims/"
updated: "2017-08-11"
category: Submissions
---

# What is the guidance for MC055 (Procedure Code) for institutional claims?

MC055 is required for outpatient claims. Inpatient procedure codes should be supplied in column MC058.