O30.022 is the authoritative medical code for Conjoined twin pregnancy, second trimester. This classification is used in medical billing and clinical recording to specify the clinical criteria for conjoined twin pregnancy, second trimester (ICD-10-CM O30.022), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Conjoined twin pregnancy, second trimester is a billable ICD-10-CM diagnosis code O30.022. Code also: any complications specific to multiple gestation.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for O30.022 in the official ICD-10-CM tabular list.
Code Also
Additional codes that may be required to fully describe the encounter.
- any complications specific to multiple gestation
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as O30.022, with their registry titles.
- O30 — Multiple gestation
- O30.0 — Twin pregnancy
- O30.001 — Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, first trimester
- O30.002 — Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, second trimester
- O30.003 — Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, third trimester
- O30.009 — Twin pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester
- O30.01 — Twin pregnancy, monochorionic/monoamniotic
- O30.011 — Twin pregnancy, monochorionic/monoamniotic, first trimester
- O30.012 — Twin pregnancy, monochorionic/monoamniotic, second trimester
- O30.013 — Twin pregnancy, monochorionic/monoamniotic, third trimester
- O30.019 — Twin pregnancy, monochorionic/monoamniotic, unspecified trimester
- O30.02 — Conjoined twin pregnancy
- O30.021 — Conjoined twin pregnancy, first trimester
- O30.023 — Conjoined twin pregnancy, third trimester
- O30.029 — Conjoined twin pregnancy, unspecified trimester
- O30.03 — Twin pregnancy, monochorionic/diamniotic
- O30.031 — Twin pregnancy, monochorionic/diamniotic, first trimester
- O30.032 — Twin pregnancy, monochorionic/diamniotic, second trimester
- O30.033 — Twin pregnancy, monochorionic/diamniotic, third trimester
- O30.039 — Twin pregnancy, monochorionic/diamniotic, unspecified trimester
- O30.04 — Twin pregnancy, dichorionic/diamniotic
- O30.041 — Twin pregnancy, dichorionic/diamniotic, first trimester
- O30.042 — Twin pregnancy, dichorionic/diamniotic, second trimester
- O30.043 — Twin pregnancy, dichorionic/diamniotic, third trimester
- 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
- 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
- O30.109 — Triplet pregnancy, unspecified number of placenta and unspecified number of amniotic sacs, unspecified trimester
- O30.11 — Triplet pregnancy with two or more monochorionic fetuses
- O30.111 — Triplet pregnancy with two or more monochorionic fetuses, first trimester
- O30.112 — Triplet pregnancy with two or more monochorionic fetuses, second trimester
- O30.113 — Triplet pregnancy with two or more monochorionic fetuses, third trimester
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code O29.022
Pressure collapse of lung due to anesthesia during pregnancy, second trimester
ICD Code O35.022
Maternal care for (suspected) central nervous system malformation or damage in fetus, anencephaly, fetus 2