ICD10

ICD-10 Code O12: Gestational [pregnancy-induced] edema and proteinuria without hypertension

O12 is an ICD-10 diagnosis entry used to group records related to Gestational [pregnancy-induced] edema and proteinuria without hypertension. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Pregnancy, childbirth and the puerperium (O00-O9A).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Pregnancy, childbirth and the puerperium (O00-O9A).

When is it used?

  • May be used when a clinician documents gestational [pregnancy-induced] edema and proteinuria without hypertension in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter
15Pregnancy, childbirth and the puerperium (O00-O9A)
block
O10-O16Edema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium
currentO10-O16

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

ObstetricianGynecologistCardiologist

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
O12

Common synonyms

Gestational [pregnancy-induced] edema and proteinuria without hypertension

Frequently asked questions

Code details

CodeO12
SystemICD10
Display nameGestational [pregnancy-induced] edema and proteinuria without hypertension
ChapterPregnancy, childbirth and the puerperium (O00-O9A)
BlockEdema, proteinuria and hypertensive disorders in pregnancy, childbirth and the puerperium

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.