O36.821
Billable codeFetal anemia and thrombocytopenia, first trimester
The ICD-10 code for fetal anemia and thrombocytopenia, first trimester is O36.821.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- O36.822Fetal anemia and thrombocytopenia, second trimester
- O36.823Fetal anemia and thrombocytopenia, third trimester
- O36.829Fetal anemia and thrombocytopenia, unspecified trimester
- O36.821Fetal anemia and thrombocytopenia, first trimester