ICD-10-CM 2027
ICD-10 code for infusion pump interrogation
From the official ICD-10-CM alphabetic index entry “Interrogation › infusion pump (implanted) (intrathecal)”. Page updated September 29, 2026.
About coding infusion pump interrogation
The ICD-10-CM code for infusion pump interrogation is Z45.1 (Encounter for adjustment and management of infusion pump).
Within Z45 (encounter for adjustment and management of implanted device), Z45.1 is specifically for encounter for adjustment and management of infusion pump. Related codes cover cardiac device (Z45.0), vascular access device (Z45.2), s of the special senses (Z45.3), implanted nervous system device (Z45.4), other implanted devices (Z45.8) and unspecified implanted device (Z45.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 949 (Aftercare with CC/MCC, relative weight 1.123) and DRG 950 (Aftercare without CC/MCC, relative weight 0.7664), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about infusion pump interrogation ICD-10 codes
What is the ICD-10 code for infusion pump interrogation?
- Z45.1 — Encounter for adjustment and management of infusion pump.
Is Z45.1 billable?
- Yes. Z45.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z45.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Z45.1 as a principal diagnosis.
Is Z45.1 a CC or MCC?
- No. Z45.1 is neither a CC nor an MCC under MS-DRG v44.0.