ICD-10 Code O99.891: Other specified diseases and conditions complicating pregnancy
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Pregnancy, childbirth and the puerperium (O00-O9A).
đź“‹Clinical overview
This ICD-10 code is commonly used when documentation describes another specified maternal condition complicating pregnancy, childbirth, or the puerperium. The most accurate code depends on maternal timing and whether the chart supports a more specifically named complication family elsewhere in the record.
When is it used?
- May be used when a clinician documents other specified diseases and conditions complicating pregnancy in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
đź©şClinical context
- Obstetric, prenatal, inpatient, delivery, and postpartum documentation where a documented maternal condition clearly complicates pregnancy-related care but does not fit a more specifically named O99 child family.
- Coding and utilization-review workflows where the record clearly ties a specified maternal condition to pregnancy, childbirth, or the puerperium and maternal timing changes the final complication code.
- Related procedures or service context already linked on this page include Obstetric ultrasound, Fetal nonstress testing.
- Maternal other-specified-condition follow-up often includes review of the underlying condition details, medication or lab context when relevant, obstetric monitoring, and coordination with the specialty most tied to the documented condition.
- Documentation usually becomes more specific when the chart identifies a narrower named maternal-complication family, trimester detail for pregnancy encounters, or clearer childbirth versus puerperium timing.
- Specialist context already linked on this page includes Obstetrician, Gynecologist.
🔍Key distinctions
- This ICD-10 family captures another specified maternal condition as a pregnancy-related complication when the record supports a defined condition but not a more specifically named O99 child family.
- Maternal timing matters, and clearer chart language about the underlying condition can move coding into a narrower maternal-complication family when one is documented elsewhere in the record.
- This title reflects another specified maternal condition complicating pregnancy, which is coded separately from the childbirth or puerperium versions of the same residual maternal-complication family.
Code hierarchy
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
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About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.