O9A.111
Billable codeMalignant neoplasm complicating pregnancy, first trimester
The ICD-10 code for malignant neoplasm complicating pregnancy, first trimester is O9A.111.
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
- O9A.112Malignant neoplasm complicating pregnancy, second trimester
- O9A.113Malignant neoplasm complicating pregnancy, third trimester
- O9A.119Malignant neoplasm complicating pregnancy, unspecified trimester
- O9A.111Malignant neoplasm complicating pregnancy, first trimester
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 64891Approximate match
- 64893Approximate match
Associated MS-DRGs
O9A.111 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 760Menstrual and Other Female Reproductive System Disorders with CC/MCC
- DRG 761Menstrual and Other Female Reproductive System Disorders without CC/MCC
- DRG 817Other Antepartum Diagnoses with O.R. Procedures with MCC
- DRG 818Other Antepartum Diagnoses with O.R. Procedures with CC
- DRG 819Other Antepartum Diagnoses with O.R. Procedures without CC/MCC
- DRG 831Other Antepartum Diagnoses without O.R. Procedures with MCC
- DRG 832Other Antepartum Diagnoses without O.R. Procedures with CC
- DRG 833Other Antepartum Diagnoses without O.R. Procedures without CC/MCC