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MS-DRG 166 Fee Schedule

Last Verified: December 2025

Healthcare providers use this code to document and receive reimbursement for visits that address high-level medical decision-making, often including multiple diagnoses or prescription management.

Other Respiratory System O.R. Procedures with MCC
Key FactDetail
Service Type

Diseases & Disorders of the Respiratory System

Common Place of Service

21 - Inpatient Hospital

22 - On Campus Outpatient Hospital

Complexity LevelHigh

National average reimbursement for MS-DRG 166 by major payers:

bcbs

$43,606.37

uhc

$50,140.67

aetna

$60,504.48

cigna

$62,124.77

Preview provider-level rates for...
For billing codeMS-DRG 166
PayerCodeRateNPITax IDStateSpecialty

Select a payer to view fee schedule data

Choose a payer from the options above to see rates for MS-DRG 166

United
166$55760.481245370717 - JAMAICA HOSPITAL111631788 - (NY) JAMAICA HOSPITAL MEDICAL CENTERNYGeneral Acute Care Hospital (282N00000X)
United
166$5761.001679903967 - EBD BEMC BURLESON, LLC, BAYLOR SCOTT & WHITE EMERGENCY HOSPITAL BURLESON364755936TXGeneral Acute Care Hospital (282N00000X)
United
166$53684.691649214255 - ROSE CITY HMA LLC, LANCASTER REGIONAL MEDICAL CENTER474849671PARehabilitation Hospital Unit (273Y00000X)
United
166$11595.001386897148 - JERSEY CITY MEDICAL CENTER, LIBERTY HOSPITALIST SERVICES222783298 - (NJ) JERSEY CITY MEDICAL CENTERNJHospitalist Physician (208M00000X)
United
166$53684.691649214255 - ROSE CITY HMA LLC, LANCASTER REGIONAL MEDICAL CENTER474849671PARehabilitation Hospital Unit (273Y00000X)
United
166$64364.121861417362 - ASCENSION SE WISCONSIN HOSPITAL, INC, ASCENSION SE WISCONSIN HOSPITAL-ELMBROOK CAMPUS390816857 - (WI) ASCENSION SE WISCONSIN HOSPITAL INCWIRehabilitation Hospital Unit (273Y00000X)
United
166$2500.001437799905 - DREW MEMORIAL HOSPITAL, INC352414105 - (AR) DREW MEMORIAL HOSPITAL INCARGeneral Acute Care Hospital (282N00000X)
United
166$48667.781043457583 - MEMORIAL HERMANN REHABILITATION HOSPITAL KATY, LLC, MEMORIAL HERMANN REHABILITATION HOSPITAL KATY263896170TXRehabilitation Hospital (283X00000X)
United
166$48667.781043457583 - MEMORIAL HERMANN REHABILITATION HOSPITAL KATY, LLC, MEMORIAL HERMANN REHABILITATION HOSPITAL KATY263896170TXRehabilitation Hospital (283X00000X)
United
166$36455.281720059215 - THE HEALTH CARE AUTHORITY OF THE CITY OF GREENVILLE822445000 - (AL) THE HEALTH CARE AUTHORITY OF THE CITY OF GREENVILLEALMedicare Defined Swing Bed Hospital Unit (275N00000X)
United
166$96048.131245220300 - KERSHAW HOSPITAL LLC571098556 - (SC) MEDICAL UNIVERSITY HOSPITAL AUTHORITYSCGeneral Acute Care Hospital (282N00000X)
United
166$46705.961023006061 - PHD#2 OF SNOHOMISH COUNTY, STEVENS HOSPITAL, STEVENS MEMORIAL HOSPITAL272305304 - (WA) SWEDISH EDMONDSWAPsychiatric Hospital Unit (273R00000X)
United
166$42353.301033376264 - REEDSBURG AREA MEDICAL CENTER391091432 - (WI) REEDSBURG AREA MEDICAL CENTER INCWICritical Access Hospital (282NC0060X)
United
166$66844.141225029390 - JACKSON MADISON COUNTY GENERAL HOSPITAL, WEST TENNESSEE REHABILITATION CENTER626010402 - (TN) JACKSON MADISON COUNTY GENERAL HOSPITALTNRehabilitation Hospital Unit (273Y00000X)
United
166$5761.001679903967 - EBD BEMC BURLESON, LLC, BAYLOR SCOTT & WHITE EMERGENCY HOSPITAL BURLESON364755936TXGeneral Acute Care Hospital (282N00000X)
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist
United
99202$100.0012345678901234567890CACardiologist

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MS-DRG 166 vs. Other Diseases & Disorders of the Respiratory System Codes

The MS-DRG 166 code is part of the Diseases & Disorders of the Respiratory System services . It represents a moderate-complexity encounter and is one of several codes that vary based on time spent, level of medical decision-making, and documentation requirements.

The MS-DRG 166 code involves more provider time and moderate medical decision-making, unlike lower-level codes that require less time and simpler assessments. It typically includes multiple diagnoses, medication management, or test interpretation, leading to higher reimbursement and more detailed documentation requirements.

CodeComplexityDescription
165-APR-DRGHighCORONARY BYPASS W AMI OR COMPLEX PDX
165-MS-DRGHighMajor Chest Procedures without CC/MCC
166-MS-DRGHighOther Respiratory System O.R. Procedures with MCC
167-APR-DRGHighOTHER CARDIOTHORACIC & THORACIC VASCULAR PROCEDURES

What is a fee schedule?

A fee schedule is a list of fixed prices that healthcare providers charge for specific services, including MS-DRG 166. These prices vary depending on payer type (Medicare, Medicaid, private insurance), geographic location, and provider contracts.

Understanding the 166 fee schedule helps patients estimate costs and providers optimize billing for accurate reimbursements.

Factors that affect fee schedules


Medicare & Medicaid Rates

Government-set reimbursement amounts


Private Insurance Rates

Negotiated rates between providers and insurance companies


Geographic Location

Costs may be higher in urban areas.


Provider Type

Hospital providers may have different rates than private practice.

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