K82.1 Hydrops of gallbladder

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Mucocele of gallbladder

Applies from K82 Other diseases of gallbladder

Excludes1 (never code together)

• nonvisualization of gallbladder (R93.2)
• postcholecystectomy syndrome (K91.5)

MS-DRG index

Defines the logic of DRG(s) 444-446 in MDC 07.

Approximate ICD-9-CM (GEMs)

• 575.3 Hydrops of gallbladder

Code annotations containing back-references to K82.1

Back-references to K82

• Type 2 Excludes: K83 Other diseases of biliary tract ("conditions involving the gallbladder (K81-K82)")
• Type 2 Excludes: K83 Other diseases of biliary tract ("conditions involving the cystic duct (K81-K82)")

Diagnosis Index entries for K82.1

• Disease, diseased › gallbladder › hydrops
• Hydrops › gallbladder
• Mucocele › gallbladder

Nearby codes

• K82 Other diseases of gallbladder
• K82.0 Obstruction of gallbladder
• K82.1 Hydrops of gallbladder (this code)
• K82.2 Perforation of gallbladder
• K82.3 Fistula of gallbladder
• K82.4 Cholesterolosis of gallbladder
• K82.8 Other specified diseases of gallbladder
• K82.9 Disease of gallbladder, unspecified