O99

Header — not billable

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 O99.

O99 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 9 more specific codes below.

Clinical notes

Excludes2 (not included here)

An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.

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

Includes

Terms listed here further define or give examples of the conditions grouped under this code — they describe what the code covers, not a separate diagnosis.

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

Use additional code

This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.

code to identify specific condition

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
•If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Child codes under O99

Related codes in this category

O94Sequelae of complication of pregnancy, childbirth, and the puerperium
O98Maternal infectious and parasitic diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperiumnon-billable header
O9AMaternal malignant neoplasms, traumatic injuries and abuse classifiable elsewhere but complicating pregnancy, childbirth and the puerperiumnon-billable header
O99Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperiumnon-billable header