O22.21
Billable codeSuperficial thrombophlebitis in pregnancy, first trimester
The ICD-10 code for superficial thrombophlebitis in pregnancy, first trimester is O22.21.
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
- O22.20Superficial thrombophlebitis in pregnancy, unspecified trimester
- O22.22Superficial thrombophlebitis in pregnancy, second trimester
- O22.23Superficial thrombophlebitis in pregnancy, third trimester
- O22.21Superficial thrombophlebitis in pregnancy, first trimester
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 67121Approximate match
- 67123Approximate match
Associated MS-DRGs
O22.21 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