ICD-10-CM 2027
ICD-10 code for pancreas accessory
Other congenital malformations of pancreas and pancreatic duct
From the official ICD-10-CM alphabetic index entry “Accessory (congenital) › pancreas”. Page updated September 29, 2026.
About coding pancreas accessory
The ICD-10-CM code for pancreas accessory is Q45.3 (Other congenital malformations of pancreas and pancreatic duct).
Within Q45, choose Q45.3 (Other congenital malformations of pancreas and pancreatic duct) only when documentation doesn't support a more specific option: agenesis, aplasia and hypoplasia of pancreas (Q45.0), Annular pancreas (Q45.1), congenital pancreatic cyst (Q45.2), other specified congenital malformations of digestive system (Q45.8) and congenital malformation of digestive system, unspecified (Q45.9).
Don't report Q45.3 together with the conditions in its Excludes1 note: congenital diabetes mellitus (E10.-), cystic fibrosis (E84.0-E84.9), fibrocystic disease of pancreas (E84.-) and neonatal diabetes mellitus (P70.2).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
Don't confuse with (Excludes1 for Q45.3)
Common questions about pancreas accessory ICD-10 codes
What is the ICD-10 code for pancreas accessory?
- Q45.3 — Other congenital malformations of pancreas and pancreatic duct.
Is Q45.3 billable?
- Yes. Q45.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q45.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q45.3 as a principal diagnosis.
Is Q45.3 a CC or MCC?
- Q45.3 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.