O99.11

Header — not billable

Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy

The ICD-10 code for other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy is O99.11.

O99.11 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 4 more specific codes below.

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.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Child codes under O99.11

Related codes in this category

O99.12Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating childbirth
O99.13Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating the puerperium
O99.11Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancynon-billable header