ICD-10-CM Tabular Index · Chapter 15 · FY 2027 O12

Gestational [pregnancy-induced] edema and proteinuria without hypertension (O12) ICD-10-CM

The O12 code range covers gestational [pregnancy-induced] edema and proteinuria without hypertension with 22 ICD-10-CM diagnosis codes. 18 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2027 datasetEffective Oct 1, 2026 – Sep 30, 2027
22
Diagnosis Codes
18
Billable Codes
O12
Code Range
O10–O16
Parent Section
ICD-10-CM

Codes in the O12 Range 22 codes · 18 billable

22 of 22 shown
  • O12 Gestational [pregnancy-induced] edema and proteinuria without hypertensionNon-billable
  • O12.0 Gestational edemaNon-billable
  • O12.00 Gestational edema, unspecified trimester
  • O12.01 Gestational edema, first trimester
  • O12.02 Gestational edema, second trimester
  • O12.03 Gestational edema, third trimester
  • O12.04 Gestational edema, complicating childbirth
  • O12.05 Gestational edema, complicating the puerperium
  • O12.1 Gestational proteinuriaNon-billable
  • O12.10 Gestational proteinuria, unspecified trimester
  • O12.11 Gestational proteinuria, first trimester
  • O12.12 Gestational proteinuria, second trimester
  • O12.13 Gestational proteinuria, third trimester
  • O12.14 Gestational proteinuria, complicating childbirth
  • O12.15 Gestational proteinuria, complicating the puerperium
  • O12.2 Gestational edema with proteinuriaNon-billable
  • O12.20 Gestational edema with proteinuria, unspecified trimester
  • O12.21 Gestational edema with proteinuria, first trimester
  • O12.22 Gestational edema with proteinuria, second trimester
  • O12.23 Gestational edema with proteinuria, third trimester
  • O12.24 Gestational edema with proteinuria, complicating childbirth
  • O12.25 Gestational edema with proteinuria, complicating the puerperium

About the O12 Code Range

These conditions involve swelling, protein in the urine, or both during pregnancy, childbirth, or the period after childbirth. They occur without high blood pressure.

O12.0 describes swelling alone. O12.1 describes protein in the urine alone. O12.2 describes both together. Each group then separates pregnancy by trimester, including an unspecified trimester, from childbirth and the period after childbirth.

Questions About This Page

How many billable codes are in the O12 range?

Of the 22 codes in this range, 18 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.

What does the O12 range classify?

The range classifies gestational [pregnancy-induced] edema and proteinuria without hypertension. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.