| ICD-10 Code | Description |
| O99.011 | Anemia complicating pregnancy, first trimester |
| O99.012 | Anemia complicating pregnancy, second trimester |
| O99.013 | Anemia complicating pregnancy, third trimester |
| O99.019 | Anemia complicating pregnancy, unspecified trimester |
| O99.02 | Anemia complicating childbirth |
| O99.03 | Anemia complicating the puerperium |
| O99.111 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, first trimester |
| O99.112 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, second trimester |
| O99.113 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, third trimester |
| O99.119 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, unspecified trimester |
| O99.12 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating childbirth |
| O99.13 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating the puerperium |
| O99.210 | Obesity complicating pregnancy, unspecified trimester |
| O99.211 | Obesity complicating pregnancy, first trimester |
| O99.212 | Obesity complicating pregnancy, second trimester |
| O99.213 | Obesity complicating pregnancy, third trimester |
| O99.214 | Obesity complicating childbirth |
| O99.215 | Obesity complicating the puerperium |
| O99.280 | Endocrine, nutritional and metabolic diseases complicating pregnancy, unspecified trimester |
| O99.281 | Endocrine, nutritional and metabolic diseases complicating pregnancy, first trimester |
| O99.282 | Endocrine, nutritional and metabolic diseases complicating pregnancy, second trimester |
| O99.283 | Endocrine, nutritional and metabolic diseases complicating pregnancy, third trimester |
| O99.284 | Endocrine, nutritional and metabolic diseases complicating childbirth |
| O99.285 | Endocrine, nutritional and metabolic diseases complicating the puerperium |
| O99.310 | Alcohol use complicating pregnancy, unspecified trimester |
| O99.311 | Alcohol use complicating pregnancy, first trimester |
| O99.312 | Alcohol use complicating pregnancy, second trimester |
| O99.313 | Alcohol use complicating pregnancy, third trimester |
| O99.314 | Alcohol use complicating childbirth |
| O99.315 | Alcohol use complicating the puerperium |
| O99.320 | Drug use complicating pregnancy, unspecified trimester |
| O99.321 | Drug use complicating pregnancy, first trimester |
| O99.322 | Drug use complicating pregnancy, second trimester |
| O99.323 | Drug use complicating pregnancy, third trimester |
| O99.324 | Drug use complicating childbirth |
| O99.325 | Drug use complicating the puerperium |
| O99.330 | Smoking (tobacco) complicating pregnancy, unspecified trimester |
| O99.331 | Smoking (tobacco) complicating pregnancy, first trimester |
| O99.332 | Smoking (tobacco) complicating pregnancy, second trimester |
| O99.333 | Smoking (tobacco) complicating pregnancy, third trimester |
| O99.334 | Smoking (tobacco) complicating childbirth |
| O99.335 | Smoking (tobacco) complicating the puerperium |
| O99.340 | Other mental disorders complicating pregnancy, unspecified trimester |
| O99.341 | Other mental disorders complicating pregnancy, first trimester |
| O99.342 | Other mental disorders complicating pregnancy, second trimester |
| O99.343 | Other mental disorders complicating pregnancy, third trimester |
| O99.344 | Other mental disorders complicating childbirth |
| O99.345 | Other mental disorders complicating the puerperium |
| O99.350 | Diseases of the nervous system complicating pregnancy, unspecified trimester |
| O99.351 | Diseases of the nervous system complicating pregnancy, first trimester |
| O99.352 | Diseases of the nervous system complicating pregnancy, second trimester |
| O99.353 | Diseases of the nervous system complicating pregnancy, third trimester |
| O99.354 | Diseases of the nervous system complicating childbirth |
| O99.355 | Diseases of the nervous system complicating the puerperium |
| O99.411 | Diseases of the circulatory system complicating pregnancy, first trimester |
| O99.412 | Diseases of the circulatory system complicating pregnancy, second trimester |
| O99.413 | Diseases of the circulatory system complicating pregnancy, third trimester |
| O99.419 | Diseases of the circulatory system complicating pregnancy, unspecified trimester |
| O99.42 | Diseases of the circulatory system complicating childbirth |
| O99.43 | Diseases of the circulatory system complicating the puerperium |
| O99.511 | Diseases of the respiratory system complicating pregnancy, first trimester |
| O99.512 | Diseases of the respiratory system complicating pregnancy, second trimester |
| O99.513 | Diseases of the respiratory system complicating pregnancy, third trimester |
| O99.519 | Diseases of the respiratory system complicating pregnancy, unspecified trimester |
| O99.52 | Diseases of the respiratory system complicating childbirth |
| O99.53 | Diseases of the respiratory system complicating the puerperium |
| O99.611 | Diseases of the digestive system complicating pregnancy, first trimester |
| O99.612 | Diseases of the digestive system complicating pregnancy, second trimester |
| O99.613 | Diseases of the digestive system complicating pregnancy, third trimester |
| O99.619 | Diseases of the digestive system complicating pregnancy, unspecified trimester |
| O99.62 | Diseases of the digestive system complicating childbirth |
| O99.63 | Diseases of the digestive system complicating the puerperium |
| O99.711 | Diseases of the skin and subcutaneous tissue complicating pregnancy, first trimester |
| O99.712 | Diseases of the skin and subcutaneous tissue complicating pregnancy, second trimester |
| O99.713 | Diseases of the skin and subcutaneous tissue complicating pregnancy, third trimester |
| O99.719 | Diseases of the skin and subcutaneous tissue complicating pregnancy, unspecified trimester |
| O99.72 | Diseases of the skin and subcutaneous tissue complicating childbirth |
| O99.73 | Diseases of the skin and subcutaneous tissue complicating the puerperium |
| O99.810 | Abnormal glucose complicating pregnancy |
| O99.814 | Abnormal glucose complicating childbirth |
| O99.815 | Abnormal glucose complicating the puerperium |
| O99.820 | Streptococcus B carrier state complicating pregnancy |
| O99.824 | Streptococcus B carrier state complicating childbirth |
| O99.825 | Streptococcus B carrier state complicating the puerperium |
| O99.830 | Other infection carrier state complicating pregnancy |
| O99.834 | Other infection carrier state complicating childbirth |
| O99.835 | Other infection carrier state complicating the puerperium |
| O99.840 | Bariatric surgery status complicating pregnancy, unspecified trimester |
| O99.841 | Bariatric surgery status complicating pregnancy, first trimester |
| O99.842 | Bariatric surgery status complicating pregnancy, second trimester |
| O99.843 | Bariatric surgery status complicating pregnancy, third trimester |
| O99.844 | Bariatric surgery status complicating childbirth |
| O99.845 | Bariatric surgery status complicating the puerperium |
| O99.891 | Other specified diseases and conditions complicating pregnancy |
| O99.892 | Other specified diseases and conditions complicating childbirth |
| O99.893 | Other specified diseases and conditions complicating puerperium |
