--- 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