O30.099 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester

Billable ICD-10-CM code, FY2026.

Applies from O30 Multiple gestation

Code also

• any complications specific to multiple gestation

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 651.00 Twin pregnancy, unspecified as to episode of care or not applicable (approximate)
• V91.09 Twin gestation, unable to determine number of placenta and number of amniotic sacs (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.

Nearby codes

• O30.049 Twin pregnancy, dichorionic/diamniotic, unspecified trimester
• O30.09 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs
• O30.091 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, first trimester
• O30.092 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, second trimester
• O30.093 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, third trimester
• O30.099 Twin pregnancy, unable to determine number of placenta and number of amniotic sacs, unspecified trimester (this code)
• O30.1 Triplet pregnancy
• O30.10 Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs
• O30.101 Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester
• O30.102 Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester
• O30.103 Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester