4A09XMZBillable procedure code
Measurement of Respiratory Total Activity, External Approach
Measurement and Monitoring·Physiological Systems·Table 4A0·FY 2027
In ICD-10-PCS, code 4A09XMZ describes Measurement of Respiratory Total Activity, External Approach. This procedure is listed in table 4A0, part of Section 4 (Measurement and Monitoring). Its root operation is Measurement. The approach used is External.
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What the code means
Measurement: root operation
Determining the level of a physiological or physical function at a point in time
External: approach
Procedures performed directly on the skin or mucous membrane and procedures performed indirectly by the application of external force through the skin or mucous membrane