Maternal care for other conditions predominantly related to pregnancy (O26) ICD-10-CM
The O26 code range covers maternal care for other conditions predominantly related to pregnancy with 93 ICD-10-CM diagnosis codes. 72 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Codes in the O26 Range 93 codes · 72 billable
- O26 Maternal care for other conditions predominantly related to pregnancyNon-billable
- O26.0 Excessive weight gain in pregnancyNon-billable
- O26.00 Excessive weight gain in pregnancy, unspecified trimester
- O26.01 Excessive weight gain in pregnancy, first trimester
- O26.02 Excessive weight gain in pregnancy, second trimester
- O26.03 Excessive weight gain in pregnancy, third trimester
- O26.1 Low weight gain in pregnancyNon-billable
- O26.10 Low weight gain in pregnancy, unspecified trimester
- O26.11 Low weight gain in pregnancy, first trimester
- O26.12 Low weight gain in pregnancy, second trimester
- O26.13 Low weight gain in pregnancy, third trimester
- O26.2 Pregnancy care for patient with recurrent pregnancy lossNon-billable
- O26.20 Pregnancy care for patient with recurrent pregnancy loss, unspecified trimester
- O26.21 Pregnancy care for patient with recurrent pregnancy loss, first trimester
- O26.22 Pregnancy care for patient with recurrent pregnancy loss, second trimester
- O26.23 Pregnancy care for patient with recurrent pregnancy loss, third trimester
- O26.3 Retained intrauterine contraceptive device in pregnancyNon-billable
- O26.30 Retained intrauterine contraceptive device in pregnancy, unspecified trimester
- O26.31 Retained intrauterine contraceptive device in pregnancy, first trimester
- O26.32 Retained intrauterine contraceptive device in pregnancy, second trimester
- O26.33 Retained intrauterine contraceptive device in pregnancy, third trimester
- O26.4 Herpes gestationisNon-billable
- O26.40 Herpes gestationis, unspecified trimester
- O26.41 Herpes gestationis, first trimester
- O26.42 Herpes gestationis, second trimester
- O26.43 Herpes gestationis, third trimester
- O26.5 Maternal hypotension syndromeNon-billable
- O26.50 Maternal hypotension syndrome, unspecified trimester
- 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 puerperiumNon-billable
- O26.61 Liver and biliary tract disorders in pregnancyNon-billable
- O26.611 Liver and biliary tract disorders in pregnancy, first trimester
- 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
- O26.64 Intrahepatic cholestasis of pregnancyNon-billable
- O26.641 Intrahepatic cholestasis of pregnancy, first trimester
- O26.642 Intrahepatic cholestasis of pregnancy, second trimester
- O26.643 Intrahepatic cholestasis of pregnancy, third trimester
- O26.649 Intrahepatic cholestasis of pregnancy, unspecified trimester
- O26.7 Subluxation of symphysis (pubis) in pregnancy, childbirth and the puerperiumNon-billable
- O26.71 Subluxation of symphysis (pubis) in pregnancyNon-billable
- O26.711 Subluxation of symphysis (pubis) in pregnancy, first trimester
- O26.712 Subluxation of symphysis (pubis) in pregnancy, second trimester
- O26.713 Subluxation of symphysis (pubis) in pregnancy, third trimester
- O26.719 Subluxation of symphysis (pubis) in pregnancy, unspecified trimester
- O26.72 Subluxation of symphysis (pubis) in childbirth
- O26.73 Subluxation of symphysis (pubis) in the puerperium
- O26.8 Other specified pregnancy related conditionsNon-billable
- O26.81 Pregnancy related exhaustion and fatigueNon-billable
- O26.811 Pregnancy related exhaustion and fatigue, first trimester
- O26.812 Pregnancy related exhaustion and fatigue, second trimester
- O26.813 Pregnancy related exhaustion and fatigue, third trimester
- O26.819 Pregnancy related exhaustion and fatigue, unspecified trimester
- O26.82 Pregnancy related peripheral neuritisNon-billable
- O26.821 Pregnancy related peripheral neuritis, first trimester
- O26.822 Pregnancy related peripheral neuritis, second trimester
- O26.823 Pregnancy related peripheral neuritis, third trimester
- O26.829 Pregnancy related peripheral neuritis, unspecified trimester
- O26.83 Pregnancy related renal diseaseNon-billable
- O26.831 Pregnancy related renal disease, first trimester
- O26.832 Pregnancy related renal disease, second trimester
- O26.833 Pregnancy related renal disease, third trimester
- O26.839 Pregnancy related renal disease, unspecified trimester
- O26.84 Uterine size-date discrepancy complicating pregnancyNon-billable
- O26.841 Uterine size-date discrepancy, first trimester
- O26.842 Uterine size-date discrepancy, second trimester
- O26.843 Uterine size-date discrepancy, third trimester
- O26.849 Uterine size-date discrepancy, unspecified trimester
- O26.85 Spotting complicating pregnancyNon-billable
- O26.851 Spotting complicating pregnancy, first trimester
- O26.852 Spotting complicating pregnancy, second trimester
- O26.853 Spotting complicating pregnancy, third trimester
- O26.859 Spotting complicating pregnancy, unspecified trimester
- O26.86 Pruritic urticarial papules and plaques of pregnancy (PUPPP)
- O26.87 Cervical shorteningNon-billable
- O26.872 Cervical shortening, second trimester
- O26.873 Cervical shortening, third trimester
- O26.879 Cervical shortening, unspecified trimester
- O26.89 Other specified pregnancy related conditionsNon-billable
- O26.891 Other specified pregnancy related conditions, first trimester
- O26.892 Other specified pregnancy related conditions, second trimester
- O26.893 Other specified pregnancy related conditions, third trimester
- O26.899 Other specified pregnancy related conditions, unspecified trimester
- O26.9 Pregnancy related conditions, unspecifiedNon-billable
- O26.90 Pregnancy related conditions, unspecified, unspecified trimester
- O26.91 Pregnancy related conditions, unspecified, first trimester
- O26.92 Pregnancy related conditions, unspecified, second trimester
- O26.93 Pregnancy related conditions, unspecified, third trimester
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the O26 range.
Excessive Weight Gain in Pregnancy
In a woman with a normal weight pre-pregnancy body mass index (BMI), i.e. 18.5-24.9, the weight gained during pregnancy exceeds a total weight gain of 35 lbs. In a woman with an underweight pre-pregnancy body mass index (BMI), i.e. less than 18.5, the weight gained during pregnancy exceeds a total weight gain of 40 lbs. In a woman with an overweight pre-pregnancy body mass index (BMI), i.e. 25.0-29.9, the weight gained during pregnancy exceeds a total weight gain of 25 lbs. In a woman with an obese pre-pregnancy body mass index (BMI), i.e. greater than 30, the weight gained during pregnancy exceeds a total weight gain of 20 lbs. These standards are supported for the whole population irrespective of height, race or ethnicity.
Low Weight Gain in Pregnancy
In a woman with a normal weight pre-pregnancy body mass index (BMI), i.e. 18.5-24.9, the weight gained during pregnancy does not exceed a total weight gain of 25 lbs. In a woman with an underweight pre-pregnancy body mass index (BMI), i.e. less than 18.5, the weight gained during pregnancy does not exceed a total weight gain of 28 lbs. In a woman with an overweight pre-pregnancy body mass index (BMI), i.e. 25.0-29.9, the weight gained during pregnancy does not exceed a total weight gain of 15 lbs. In a woman with an obese pre-pregnancy body mass index (BMI), i.e. greater than 30, the weight gained during pregnancy does not exceed a total weight gain of 11 lbs. These standards are supported for the whole population irrespective of height, race or ethnicity.
Pemphigoid Gestationis
An itching, autoimmune, bullous SKIN disease that occurs during the last two trimesters of PREGNANCY and PUERPERIUM. It also affects non-pregnant females with tissue of PLACENTA origin, such as CHORIOCARCINOMA; or HYDATIDIFORM MOLE. It exhibits antigenic and clinical similarity to bullous pemphigoid (PEMPHIGOID, BULLOUS). This disease does not involve herpes viruses (old name, herpes gestationis).
Uterine Size-Date Discrepancy
A clinical finding that reveals a uterus that is either larger or smaller than expected based on last menstrual period.
About the O26 Code Range
These maternal conditions relate mainly to pregnancy. They include changes in weight gain, recurrent pregnancy loss, a retained contraceptive device, and liver or bile-tract disorders.
The subdivisions separate excessive weight gain (O26.0) from low weight gain (O26.1). Recurrent pregnancy loss and a retained contraceptive device have separate subdivisions. These groups distinguish the trimester, including when it is unspecified. Liver and bile-tract disorders (O26.6) and a pubic-joint condition (O26.7) distinguish pregnancy, childbirth, and the period after childbirth. Other specified conditions include fatigue and spotting; O26.9 identifies an unspecified pregnancy-related condition.
Questions About This Page
How many billable codes are in the O26 range?
Of the 93 codes in this range, 72 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the O26 range classify?
The range classifies maternal care for other conditions predominantly related to pregnancy. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
