ICD-10-CM category
O26: Maternal care for other conditions predominantly related to pregnancy
Codes under O26 (Maternal care for other conditions predominantly related to pregnancy). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| O26.0 | Excessive weight gain in pregnancy | — |
| O26.0 | Excessive weight gain in pregnancy | — |
| O26.00 | Excessive weight gain in pregnancy, unspecified trimester | ✓ |
| O26.00 | Excessive weight gain in pregnancy, unspecified trimester | ✓ |
| O26.01 | Excessive weight gain in pregnancy, first trimester | ✓ |
| O26.01 | Excessive weight gain in pregnancy, first trimester | ✓ |
| O26.1 | Low weight gain in pregnancy | — |
| O26.1 | Low weight gain in pregnancy | — |
| O26.02 | Excessive weight gain in pregnancy, second trimester | ✓ |
| O26.02 | Excessive weight gain in pregnancy, second trimester | ✓ |
| O26.2 | Pregnancy care for patient with recurrent pregnancy loss | — |
| O26.2 | Pregnancy care for patient with recurrent pregnancy loss | — |
| O26.03 | Excessive weight gain in pregnancy, third trimester | ✓ |
| O26.03 | Excessive weight gain in pregnancy, third trimester | ✓ |
| O26.3 | Retained intrauterine contraceptive device in pregnancy | — |
| O26.3 | Retained intrauterine contraceptive device in pregnancy | — |
| O26.4 | Herpes gestationis | — |
| O26.4 | Herpes gestationis | — |
| O26.5 | Maternal hypotension syndrome | — |
| O26.5 | Maternal hypotension syndrome | — |
| O26.6 | Liver and biliary tract disorders in pregnancy, childbirth and the puerperium | — |
| O26.6 | Liver and biliary tract disorders in pregnancy, childbirth and the puerperium | — |
| O26.7 | Subluxation of symphysis (pubis) in pregnancy, childbirth and the puerperium | — |
| O26.7 | Subluxation of symphysis (pubis) in pregnancy, childbirth and the puerperium | — |
| O26.8 | Other specified pregnancy related conditions | — |
| O26.8 | Other specified pregnancy related conditions | — |
| O26.9 | Pregnancy related conditions, unspecified | — |
| O26.9 | Pregnancy related conditions, unspecified | — |
| O26.10 | Low weight gain in pregnancy, unspecified trimester | ✓ |
| O26.10 | Low weight gain in pregnancy, unspecified trimester | ✓ |
| O26.11 | Low weight gain in pregnancy, first trimester | ✓ |
| O26.11 | Low weight gain in pregnancy, first trimester | ✓ |
| O26.12 | Low weight gain in pregnancy, second trimester | ✓ |
| O26.12 | Low weight gain in pregnancy, second trimester | ✓ |
| O26.13 | Low weight gain in pregnancy, third trimester | ✓ |
| O26.13 | Low weight gain in pregnancy, third trimester | ✓ |
| O26.20 | Pregnancy care for patient with recurrent pregnancy loss, unspecified trimester | ✓ |
| O26.20 | Pregnancy care for patient with recurrent pregnancy loss, unspecified trimester | ✓ |
| O26.21 | Pregnancy care for patient with recurrent pregnancy loss, first trimester | ✓ |
| O26.21 | Pregnancy care for patient with recurrent pregnancy loss, first trimester | ✓ |
| O26.22 | Pregnancy care for patient with recurrent pregnancy loss, second trimester | ✓ |
| O26.22 | Pregnancy care for patient with recurrent pregnancy loss, second trimester | ✓ |
| O26.23 | Pregnancy care for patient with recurrent pregnancy loss, third trimester | ✓ |
| O26.23 | Pregnancy care for patient with recurrent pregnancy loss, third trimester | ✓ |
| O26.30 | Retained intrauterine contraceptive device in pregnancy, unspecified trimester | ✓ |
| O26.30 | Retained intrauterine contraceptive device in pregnancy, unspecified trimester | ✓ |
| O26.31 | Retained intrauterine contraceptive device in pregnancy, first trimester | ✓ |
| O26.31 | Retained intrauterine contraceptive device in pregnancy, first trimester | ✓ |
| O26.32 | Retained intrauterine contraceptive device in pregnancy, second trimester | ✓ |
| O26.32 | Retained intrauterine contraceptive device in pregnancy, second trimester | ✓ |
| O26.33 | Retained intrauterine contraceptive device in pregnancy, third trimester | ✓ |
| O26.33 | Retained intrauterine contraceptive device in pregnancy, third trimester | ✓ |
| O26.40 | Herpes gestationis, unspecified trimester | ✓ |
| O26.40 | Herpes gestationis, unspecified trimester | ✓ |
| O26.41 | Herpes gestationis, first trimester | ✓ |
| O26.41 | Herpes gestationis, first trimester | ✓ |
| O26.42 | Herpes gestationis, second trimester | ✓ |
| O26.42 | Herpes gestationis, second trimester | ✓ |
| O26.43 | Herpes gestationis, third trimester | ✓ |
| O26.43 | Herpes gestationis, third trimester | ✓ |
| O26.50 | Maternal hypotension syndrome, unspecified trimester | ✓ |
| O26.50 | Maternal hypotension syndrome, unspecified trimester | ✓ |
| O26.51 | Maternal hypotension syndrome, first trimester | ✓ |
| O26.51 | Maternal hypotension syndrome, first trimester | ✓ |
| O26.52 | Maternal hypotension syndrome, second trimester | ✓ |
| O26.52 | Maternal hypotension syndrome, second trimester | ✓ |
| O26.53 | Maternal hypotension syndrome, third trimester | ✓ |
| O26.53 | Maternal hypotension syndrome, third trimester | ✓ |
| O26.61 | Liver and biliary tract disorders in pregnancy | — |
| O26.61 | Liver and biliary tract disorders in pregnancy | — |
| O26.62 | Liver and biliary tract disorders in childbirth | ✓ |
| O26.62 | Liver and biliary tract disorders in childbirth | ✓ |
| O26.63 | Liver and biliary tract disorders in the puerperium | ✓ |
| O26.63 | Liver and biliary tract disorders in the puerperium | ✓ |
| O26.64 | Intrahepatic cholestasis of pregnancy | — |
| O26.64 | Intrahepatic cholestasis of pregnancy | — |
| O26.71 | Subluxation of symphysis (pubis) in pregnancy | — |
| O26.71 | Subluxation of symphysis (pubis) in pregnancy | — |
| O26.72 | Subluxation of symphysis (pubis) in childbirth | ✓ |
| O26.72 | Subluxation of symphysis (pubis) in childbirth | ✓ |
| O26.73 | Subluxation of symphysis (pubis) in the puerperium | ✓ |
| O26.73 | Subluxation of symphysis (pubis) in the puerperium | ✓ |
| O26.81 | Pregnancy related exhaustion and fatigue | — |
| O26.81 | Pregnancy related exhaustion and fatigue | — |
| O26.82 | Pregnancy related peripheral neuritis | — |
| O26.82 | Pregnancy related peripheral neuritis | — |
| O26.83 | Pregnancy related renal disease | — |
| O26.83 | Pregnancy related renal disease | — |
| O26.84 | Uterine size-date discrepancy complicating pregnancy | — |
| O26.84 | Uterine size-date discrepancy complicating pregnancy | — |
| O26.85 | Spotting complicating pregnancy | — |
| O26.85 | Spotting complicating pregnancy | — |
| O26.86 | Pruritic urticarial papules and plaques of pregnancy (PUPPP) | ✓ |
| O26.86 | Pruritic urticarial papules and plaques of pregnancy (PUPPP) | ✓ |
| O26.87 | Cervical shortening | — |
| O26.87 | Cervical shortening | — |
| O26.89 | Other specified pregnancy related conditions | — |
| O26.89 | Other specified pregnancy related conditions | — |
| O26.90 | Pregnancy related conditions, unspecified, unspecified trimester | ✓ |
| O26.90 | Pregnancy related conditions, unspecified, unspecified trimester | ✓ |
| O26.91 | Pregnancy related conditions, unspecified, first trimester | ✓ |
| O26.91 | Pregnancy related conditions, unspecified, first trimester | ✓ |
| O26.92 | Pregnancy related conditions, unspecified, second trimester | ✓ |
| O26.92 | Pregnancy related conditions, unspecified, second trimester | ✓ |
| O26.93 | Pregnancy related conditions, unspecified, third trimester | ✓ |
| O26.93 | Pregnancy related conditions, unspecified, third trimester | ✓ |
| O26.611 | Liver and biliary tract disorders in pregnancy, first trimester | ✓ |
| O26.611 | Liver and biliary tract disorders in pregnancy, first trimester | ✓ |
| O26.612 | Liver and biliary tract disorders in pregnancy, second trimester | ✓ |
| O26.612 | Liver and biliary tract disorders in pregnancy, second trimester | ✓ |
| O26.613 | Liver and biliary tract disorders in pregnancy, third trimester | ✓ |
| O26.613 | Liver and biliary tract disorders in pregnancy, third trimester | ✓ |
| O26.619 | Liver and biliary tract disorders in pregnancy, unspecified trimester | ✓ |
| O26.619 | Liver and biliary tract disorders in pregnancy, unspecified trimester | ✓ |
| O26.641 | Intrahepatic cholestasis of pregnancy, first trimester | ✓ |
| O26.641 | Intrahepatic cholestasis of pregnancy, first trimester | ✓ |
| O26.642 | Intrahepatic cholestasis of pregnancy, second trimester | ✓ |
| O26.642 | Intrahepatic cholestasis of pregnancy, second trimester | ✓ |
| O26.643 | Intrahepatic cholestasis of pregnancy, third trimester | ✓ |
| O26.643 | Intrahepatic cholestasis of pregnancy, third trimester | ✓ |
| O26.649 | Intrahepatic cholestasis of pregnancy, unspecified trimester | ✓ |
| O26.649 | Intrahepatic cholestasis of pregnancy, unspecified trimester | ✓ |
| O26.711 | Subluxation of symphysis (pubis) in pregnancy, first trimester | ✓ |
| O26.711 | Subluxation of symphysis (pubis) in pregnancy, first trimester | ✓ |
| O26.712 | Subluxation of symphysis (pubis) in pregnancy, second trimester | ✓ |
| O26.712 | Subluxation of symphysis (pubis) in pregnancy, second trimester | ✓ |
| O26.713 | Subluxation of symphysis (pubis) in pregnancy, third trimester | ✓ |
| O26.713 | Subluxation of symphysis (pubis) in pregnancy, third trimester | ✓ |
| O26.719 | Subluxation of symphysis (pubis) in pregnancy, unspecified trimester | ✓ |
| O26.719 | Subluxation of symphysis (pubis) in pregnancy, unspecified trimester | ✓ |
| O26.811 | Pregnancy related exhaustion and fatigue, first trimester | ✓ |
| O26.811 | Pregnancy related exhaustion and fatigue, first trimester | ✓ |
| O26.812 | Pregnancy related exhaustion and fatigue, second trimester | ✓ |
| O26.812 | Pregnancy related exhaustion and fatigue, second trimester | ✓ |
| O26.813 | Pregnancy related exhaustion and fatigue, third trimester | ✓ |
| O26.813 | Pregnancy related exhaustion and fatigue, third trimester | ✓ |
| O26.819 | Pregnancy related exhaustion and fatigue, unspecified trimester | ✓ |
| O26.819 | Pregnancy related exhaustion and fatigue, unspecified trimester | ✓ |
| O26.821 | Pregnancy related peripheral neuritis, first trimester | ✓ |
| O26.821 | Pregnancy related peripheral neuritis, first trimester | ✓ |
| O26.822 | Pregnancy related peripheral neuritis, second trimester | ✓ |
| O26.822 | Pregnancy related peripheral neuritis, second trimester | ✓ |
| O26.823 | Pregnancy related peripheral neuritis, third trimester | ✓ |
| O26.823 | Pregnancy related peripheral neuritis, third trimester | ✓ |
| O26.829 | Pregnancy related peripheral neuritis, unspecified trimester | ✓ |
| O26.829 | Pregnancy related peripheral neuritis, unspecified trimester | ✓ |
| O26.831 | Pregnancy related renal disease, first trimester | ✓ |
| O26.831 | Pregnancy related renal disease, first trimester | ✓ |
| O26.832 | Pregnancy related renal disease, second trimester | ✓ |
| O26.832 | Pregnancy related renal disease, second trimester | ✓ |
| O26.833 | Pregnancy related renal disease, third trimester | ✓ |
| O26.833 | Pregnancy related renal disease, third trimester | ✓ |
| O26.839 | Pregnancy related renal disease, unspecified trimester | ✓ |
| O26.839 | Pregnancy related renal disease, unspecified trimester | ✓ |
| O26.841 | Uterine size-date discrepancy, first trimester | ✓ |
| O26.841 | Uterine size-date discrepancy, first trimester | ✓ |
| O26.842 | Uterine size-date discrepancy, second trimester | ✓ |
| O26.842 | Uterine size-date discrepancy, second trimester | ✓ |
| O26.843 | Uterine size-date discrepancy, third trimester | ✓ |
| O26.843 | Uterine size-date discrepancy, third trimester | ✓ |
| O26.849 | Uterine size-date discrepancy, unspecified trimester | ✓ |
| O26.849 | Uterine size-date discrepancy, unspecified trimester | ✓ |
| O26.851 | Spotting complicating pregnancy, first trimester | ✓ |
| O26.851 | Spotting complicating pregnancy, first trimester | ✓ |
| O26.852 | Spotting complicating pregnancy, second trimester | ✓ |
| O26.852 | Spotting complicating pregnancy, second trimester | ✓ |
| O26.853 | Spotting complicating pregnancy, third trimester | ✓ |
| O26.853 | Spotting complicating pregnancy, third trimester | ✓ |
| O26.859 | Spotting complicating pregnancy, unspecified trimester | ✓ |
| O26.859 | Spotting complicating pregnancy, unspecified trimester | ✓ |
| O26.872 | Cervical shortening, second trimester | ✓ |
| O26.872 | Cervical shortening, second trimester | ✓ |
| O26.873 | Cervical shortening, third trimester | ✓ |
| O26.873 | Cervical shortening, third trimester | ✓ |
| O26.879 | Cervical shortening, unspecified trimester | ✓ |
| O26.879 | Cervical shortening, unspecified trimester | ✓ |
| O26.891 | Other specified pregnancy related conditions, first trimester | ✓ |
| O26.891 | Other specified pregnancy related conditions, first trimester | ✓ |
| O26.892 | Other specified pregnancy related conditions, second trimester | ✓ |
| O26.892 | Other specified pregnancy related conditions, second trimester | ✓ |
| O26.893 | Other specified pregnancy related conditions, third trimester | ✓ |
| O26.893 | Other specified pregnancy related conditions, third trimester | ✓ |
| O26.899 | Other specified pregnancy related conditions, unspecified trimester | ✓ |
| O26.899 | Other specified pregnancy related conditions, unspecified trimester | ✓ |
Frequently asked questions
What is ICD-10-CM code O26?
O26 is an ICD-10-CM category covering Maternal care for other conditions predominantly related to pregnancy. It contains 184 more specific diagnosis codes, 144 of which are billable.
Is O26 a billable code?
No — O26 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example O26.0 — Excessive weight gain in pregnancy). 144 of the 184 codes under O26 are billable.
What codes fall under O26?
O26 includes O26.0, O26.0, O26.00, O26.00, O26.01, plus 179 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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