O26.611 Liver and biliary tract disorders in pregnancy, first trimester

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

Applies from O26.6 Liver and biliary tract disorders in pregnancy, childbirth and the puerperium

Excludes2 (not included here)

• hepatorenal syndrome following labor and delivery (O90.41)

Use additional code

• code to identify the specific disorder

MS-DRG index

Defines the logic of DRG(s) 817-819 in MDC 14.

Approximate ICD-9-CM (GEMs)

• 646.71 Liver and biliary tract disorders in pregnancy, delivered, with or without mention of antepartum condition (approximate)
• 646.73 Liver and biliary tract disorders in pregnancy, antepartum condition or complication (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Maternity diagnoses (age 9 through 64): Age conflict edit. These diagnoses are clinically expected only in patients age 9 through 64.

Code annotations containing back-references to O26.611

Back-references to O26.6

• Type 2 Excludes: K72 Hepatic failure, not elsewhere classified ("hepatic failure complicating pregnancy, childbirth and the puerperium (O26.6-)")
• Type 2 Excludes: O99.6 Diseases of the digestive system complicating pregnancy, childbirth and the puerperium ("liver and biliary tract disorders in pregnancy, childbirth and the puerperium (O26.6-)")

Back-references to O26

• Type 1 Excludes: Z03.7 Encounter for suspected maternal and fetal conditions ruled out ("known or suspected fetal anomalies affecting management of mother, not ruled out (O26.-, O35.-, O36.-, O40.-, O41.-)")

Nearby codes

• O26.51 Maternal hypotension syndrome, first trimester
• O26.52 Maternal hypotension syndrome, second trimester
• O26.53 Maternal hypotension syndrome, third trimester
• O26.6 Liver and biliary tract disorders in pregnancy, childbirth and the puerperium
• O26.61 Liver and biliary tract disorders in pregnancy
• O26.611 Liver and biliary tract disorders in pregnancy, first trimester (this code)
• O26.612 Liver and biliary tract disorders in pregnancy, second trimester
• O26.613 Liver and biliary tract disorders in pregnancy, third trimester
• O26.619 Liver and biliary tract disorders in pregnancy, unspecified trimester
• O26.62 Liver and biliary tract disorders in childbirth
• O26.63 Liver and biliary tract disorders in the puerperium