ICD-10-CM Diagnosis Code (2025)
Official Description for O99
Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
Coding Notes & Guidelines for O99
conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care
- anemia arising in the puerperium (O90.81)
- postpartum anemia NOS (O90.81)
postpartum anemia not pre-existing prior to delivery (O90.81)
hemorrhage with coagulation defects (O45.-, O46.0-, O67.0, O72.3)
peripartum cardiomyopathy (O90.3)
gestational diabetes (O24.4-)
Carrier of streptococcus group B (GBS) in a nonpregnant woman (Z22.330)
when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)
- diabetes mellitus (O24.-)
- malnutrition (O25.-)
- postpartum thyroiditis (O90.5)
- postpartum mood disturbance (O90.6)
- postnatal psychosis (F53.1)
- puerperal psychosis (F53.1)
pregnancy related peripheral neuritis (O26.8-)
- hypertensive disorders (O10-O16)
- obstetric embolism (O88.-)
- venous complications and cerebrovenous sinus thrombosis in labor, childbirth and the puerperium (O87.-)
- venous complications and cerebrovenous sinus thrombosis in pregnancy (O22.-)
- hemorrhoids in pregnancy (O22.4-)
- liver and biliary tract disorders in pregnancy, childbirth and the puerperium (O26.6-)
- herpes gestationis (O26.4)
- pruritic urticarial papules and plaques of pregnancy (PUPPP) (O26.86)
- genitourinary infections in pregnancy (O23.-)
- infection of genitourinary tract following delivery (O86.1-O86.4)
- malignant neoplasm complicating pregnancy, childbirth and the puerperium (O9A.1-)
- maternal care for known or suspected abnormality of maternal pelvic organs (O34.-)
- postpartum acute kidney failure (O90.49)
- traumatic injuries in pregnancy (O9A.2-)
code to identify specific condition
code to identify the type of obesity (E66.-)
code(s) from F10 to identify manifestations of the alcohol use
code(s) from F11-F16 and F18-F19 to identify manifestations of the drug use
code from category F17 to identify type of tobacco nicotine dependence
code to identify condition
code to identify the carrier state (Z22.-)
Conditions in D50-D64
Conditions in D65-D89
Conditions in E00-E89
Smoking complicating pregnancy, childbirth, and the puerperium
Conditions in F01-F09, F20-F52 and F54-F99
Conditions in G00-G99
Conditions in I00-I99
Conditions in J00-J99
Conditions in K00-K93
Conditions in L00-L99
Conditions in D00-D48, H00-H95, M00-N99, and Q00-Q99
- Gastric banding status complicating pregnancy, childbirth and the puerperium
- Gastric bypass status for obesity complicating pregnancy, childbirth and the puerperium
- Obesity surgery status complicating pregnancy, childbirth and the puerperium
Child Codes (More Specific Codes for O99):
About ICD-10-CM Code O99 (Other maternal diseases classifiable elsewhere but complicating pregnancy)
ICD-10-CM code O99 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM O99 became effective on October 1, 2024.
This page provides detailed information about O99 - Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other maternal diseases classifiable elsewhere but complicating pregnancy related to childbirth and the puerperium.