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


The ICD 10 Code for Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium is listed as O99.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: O99
Description: Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
  • Includes: conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care
  • Use additional code to identify specific condition
  • Excludes2: when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)
Chapter Pregnancy, childbirth and the puerperium (O00-O9A)
ICD-10-CM Children (deeper level / typically more specific) of O99:
O99.0 - Anemia complicating pregnancy, childbirth and 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
O99.2 - Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium
O99.3 - Mental disorders and diseases of the nervous system complicating pregnancy, childbirth and the puerperium
O99.4 - Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium
O99.5 - Diseases of the respiratory system complicating pregnancy, childbirth and the puerperium
O99.6 - Diseases of the digestive system complicating pregnancy, childbirth and the puerperium
O99.7 - Diseases of the skin and subcutaneous tissue complicating pregnancy, childbirth and the puerperium
O99.8 - Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium