O99 Oth maternal diseases classd elsw but compl preg/chldbrth
ICD-10-CM category O99 sits in Chapter 15 (Pregnancy, childbirth and the puerperium, O00-O9A). It contains 96 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.
Subcategories
O99.0 Anemia complicating pregnancy, childbirth and the puerperiumO99.01 Anemia complicating pregnancyO99.1 Other dis blood/immune compl preg/childbrthO99.11 Oth diseases of the bld/bld-form org/immun mechnsm comp pregO99.2 Endo, nutritional and metabolic diseases compl preg/chldbrthO99.21 Obesity comp pregnancy, childbirth, and the puerperiumO99.28 Oth endo, nutritional and metab diseases compl preg/chldbrthO99.3 Mental disord and dis of the nervous sys compl preg/chldbrthO99.31 Alcohol use comp pregnancy, childbirth, and the puerperiumO99.32 Drug use comp pregnancy, childbirth, and the puerperiumO99.33 Tobacco use disorder comp pregnancy, chldbrth, and the puerpO99.34 Oth mental disorders comp pregnancy, chldbrth, and the puerpO99.35 Dis of the nervous sys comp preg, chldbrth, and the puerpO99.4 Diseases of the circulatory system compl preg/chldbrthO99.41 Diseases of the circulatory system complicating pregnancyO99.5 Diseases of the respiratory system compl preg/chldbrthO99.51 Diseases of the respiratory system complicating pregnancyO99.6 Diseases of the digestive system compl preg/chldbrthO99.61 Diseases of the digestive system complicating pregnancyO99.7 Diseases of the skin, subcu compl preg/chldbrthO99.71 Diseases of the skin, subcu complicating pregnancyO99.8 Oth diseases and conditions compl preg/chldbrthO99.81 Abnormal glucose compl preg/chldbrthO99.82 Streptococcus B carrier state compl preg/chldbrthO99.83 Oth infection carrier state compl preg/chldbrthO99.84 Bariatric surgery status compl preg/chldbrthO99.89 Oth diseases and conditions compl preg/chldbrth
Billable codes in O99
| 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 |
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