ICD-10-CM Tabular Index · Chapter 15 · FY 2026 O94–O9A
Other obstetric conditions, not elsewhere classified (O94-O9A) ICD-10-CM
The O94–O9A section covers other obstetric conditions, not elsewhere classified with 247 ICD-10-CM diagnosis codes, of which 187 are billable in fiscal year 2026. The section is organized into the 4 code ranges listed below.
✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the O94–O9A Code Range
ICD-10 codes O94 through O9A cover a variety of other obstetric conditions not classified elsewhere, including complications from infections, diseases, injuries, and abuse during pregnancy, childbirth, and the postpartum period.
This range includes codes like O94 for sequelae of pregnancy complications and O98 for maternal infectious and parasitic diseases complicating obstetric events, with specific codes for diseases such as tuberculosis, syphilis, gonorrhea, viral hepatitis, HIV, and other sexually transmitted or parasitic infections. For example, maternal tuberculosis during pregnancy can be coded under O98.019, while HIV disease complicating pregnancy is under O98.719. Codes in O99 address non-infectious maternal diseases complicating pregnancy, including anemia, blood disorders, endocrine diseases like obesity and thyroid issues, mental and nervous system disorders, circulatory and respiratory diseases, digestive system problems, skin conditions, and abnormal glucose tolerance. Lastly, O9A codes capture maternal malignant neoplasms, injuries, and different forms of abuse such as physical, sexual, and psychological abuse affecting pregnancy and delivery. This detailed classification helps medical coders accurately document complex maternal health issues complicating obstetric care across all pregnancy stages and the puerperium.
Questions About This Page
How many codes are in the O94-O9A range?
The O94-O9A range contains 247 ICD-10-CM diagnosis codes in FY 2026. 187 of them are billable, and the rest are category headers that organize the section.
What conditions does O94-O9A cover?
The range covers other obstetric conditions, not elsewhere classified. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
condition resulting from (sequela) of complication of pregnancy, childbirth, and the puerperium
This category is to be used to indicate conditions in O00O77O85O98O9A
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
the listed conditions when complicating the pregnant state, when aggravated by the pregnancy, or as a reason for obstetric care
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
code (Chapter 1), to identify specific infectious or parasitic disease
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care
Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
code to identify specific condition
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
when the reason for maternal care is that the condition is known or suspected to have affected the fetus O35O36
