ICD-10-CM 2027
ICD-10 code for gastric lap band fitting
Encounter for fitting and adjustment of gastric lap band
From the official ICD-10-CM alphabetic index entry “Fitting (and adjustment) (of) › gastric lap band”. Page updated September 29, 2026.
About coding gastric lap band fitting
The ICD-10-CM code for gastric lap band fitting is Z46.51 (Encounter for fitting and adjustment of gastric lap band).
Within Z46.5 (encounter for fitting and adjustment of other gastrointestinal appliance and device), Z46.51 is specifically for encounter for fitting and adjustment of gastric lap band. Related codes cover other gastrointestinal appliance and device (Z46.59).
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 393 (Other Digestive System Diagnoses with MCC, relative weight 1.5881), DRG 394 (Other Digestive System Diagnoses with CC, relative weight 0.9228) and DRG 395 (Other Digestive System Diagnoses without CC/MCC, relative weight 0.6382), in MDC 06 (Diseases and Disorders of the Digestive System), 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 gastric lap band fitting ICD-10 codes
What is the ICD-10 code for gastric lap band fitting?
- Z46.51 — Encounter for fitting and adjustment of gastric lap band.
Is Z46.51 billable?
- Yes. Z46.51 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z46.51 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z46.51 a CC or MCC?
- No. Z46.51 is neither a CC nor an MCC under MS-DRG v44.0.