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2. ICD-10 CM Code
3. Chapter - O00-O9A
4. Section - O94-O9A
5. Category - O99

Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium - O99

• conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care

• code to identify specific condition

• when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)

• O99.0 - Anemia complicating pregnancy, childbirth and the puerperium
• O99.01 - Anemia complicating pregnancy
• 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
• O99.1 - Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, childbirth and the puerperium
• O99.11 - Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy
• 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
• O99.2 - Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium
• O99.21 - Obesity complicating pregnancy, childbirth, and 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
• O99.28 - Other endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and 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
• O99.3 - Mental disorders and diseases of the nervous system complicating pregnancy, childbirth and the puerperium
• O99.31 - Alcohol use complicating pregnancy, childbirth, and 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
• O99.32 - Drug use complicating pregnancy, childbirth, and 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
• O99.33 - Tobacco use disorder complicating pregnancy, childbirth, and 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
• O99.34 - Other mental disorders complicating pregnancy, childbirth, and 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
• O99.35 - Diseases of the nervous system complicating pregnancy, childbirth, and 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
• O99.4 - Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium
• O99.41 - Diseases of the circulatory system complicating pregnancy
• 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
• O99.5 - Diseases of the respiratory system complicating pregnancy, childbirth and the puerperium
• O99.51 - Diseases of the respiratory system complicating pregnancy
• 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
• O99.6 - Diseases of the digestive system complicating pregnancy, childbirth and the puerperium
• O99.61 - Diseases of the digestive system complicating pregnancy
• 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
• O99.7 - Diseases of the skin and subcutaneous tissue complicating pregnancy, childbirth and the puerperium
• O99.71 - Diseases of the skin and subcutaneous tissue complicating pregnancy
• 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
• O99.8 - Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium
• O99.81 - Abnormal glucose complicating pregnancy, childbirth and the puerperium
• O99.810 - Abnormal glucose complicating pregnancy
• O99.814 - Abnormal glucose complicating childbirth
• O99.815 - Abnormal glucose complicating the puerperium
• O99.82 - Streptococcus B carrier state complicating pregnancy, childbirth and 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
• O99.83 - Other infection carrier state complicating pregnancy, childbirth and 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
• O99.84 - Bariatric surgery status complicating pregnancy, childbirth and 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
• O99.89 - Other specified diseases and conditions complicating pregnancy, childbirth and 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