O12.00 – Gestational edema, unspecified trimester

ICD-10-CM 2027 diagnosis code · Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium

Billable code

ICD-10-CM code O12.00

Code: O12.00 (claims format: O1200)
Description: Gestational edema, unspecified trimester
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block: O10-O16 Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium
Parent codes: O12 › O12.0

Related codes in O12.0

O12.01 – Gestational edema, first trimesterBillable
O12.02 – Gestational edema, second trimesterBillable
O12.03 – Gestational edema, third trimesterBillable
O12.04 – Gestational edema, complicating childbirthBillable
O12.05 – Gestational edema, complicating the puerperiumBillable

Frequently asked questions

What is ICD-10 code O12.00?

O12.00 is the ICD-10-CM code for gestational edema, unspecified trimester, in the block O10-O16 (Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium).

Is O12.00 a billable code?

Yes. O12.00 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does O12.00 belong to?

It belongs to category O12 – Gestational [pregnancy-induced] edema and proteinuria without hypertension.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.