Observance guideSource-backed

Congenital Diaphragmatic Hernia Awareness Day2026 · Date · History

CDH International identifies 19 April as Congenital Diaphragmatic Hernia Awareness Day; historic proclamations also document the observance.

Annual dateReviewed 2026-09-07

About Congenital Diaphragmatic Hernia Awareness Day

Congenital Diaphragmatic Hernia Awareness Day is observed on April 19 within the CDH patient, family and advocacy community.

CDH Research International describes the date as an international awareness day and continues awareness activity around it.

Why Congenital Diaphragmatic Hernia Awareness Day matters

The day focuses attention on congenital diaphragmatic hernia and the experiences of affected families.

This guide explains the observance and its documented history; it does not provide diagnosis, prognosis or treatment advice.

History of Congenital Diaphragmatic Hernia Awareness Day

CDH Research International states that April 19 was chosen because a trademark on the phrase “Congenital Diaphragmatic Hernia Awareness” was removed on April 19, 2010.

The organization documents proclamations, landmark lightings, advocacy and other awareness activity tied to April 19.

Current material continues to identify April 19 as Global/Congenital Diaphragmatic Hernia Awareness Day.

Origins & establishment

What the evidence establishes

Evidence & sources ↓

Confirmed institutional roles and milestones are shown first. Details that could not be established from the reviewed sources are listed separately below.

Current facilitator / coordinatorCDH Research International / CHERUBSThe organization continues to promote April 19 awareness and related campaigns.
Why this exact date?April 19 marks the 19 April 2010 removal of a trademark on “Congenital Diaphragmatic Hernia Awareness.”CDH International’s own guide explicitly gives this reason for choosing April 19.
7 fields not established in reviewed sources
Originator / proposerThe reviewed first-party sources describe community and organizational awareness work but do not establish one creator of the recurring observance.
Proclaiming / establishing bodyThis is a health-awareness observance rather than a statutory holiday established by one legal body.
Original establishing instrument / decisionNo legal establishing instrument applies to the awareness observance.
Original instrument adoption / decision dateNo legal establishing instrument applies.
First observanceThe sources explain why April 19 was chosen but do not explicitly establish the first recurring edition.
Former nameThe reviewed first-party sources do not establish a formal former name transition for the observance.
Former dateNo former recurring date is established.
Source qualityHigh confidence
3 Official organizer
View all sources ↓
Names

Also known as

Congenital Diaphragmatic Hernia Action Day

How to Observe Congenital Diaphragmatic Hernia Awareness Day

01

Use April 19 as the recurring awareness date.

02

Support reputable patient/family education and research organizations if participating.

03

Treat municipal or state proclamations as recognition within their jurisdictions, not as creation of a federal or international statutory holiday.

04

For medical questions, use qualified clinicians and authoritative medical resources rather than observance-day summaries.

Congenital Diaphragmatic Hernia Awareness Day Facts

Fact 01

The observance is associated with April 19.

Fact 02

CDH Research International links the date to the April 19, 2010 trademark outcome.

Fact 03

The organization continues to promote April 19 awareness activity.

Fact 04

Local and regional proclamations document recognition but have limited legal scope.

Fact 05

Available first-party material does not identify a single original creator or exact first observance.

Classification

Topic and context

Celebrations & Social →
Accuracy notes

What this page does not assume

  • Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
  • Do not treat the title alone as proof of government recognition or public-holiday status.
  • Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
Evidence

Evidence & sources

Source policy →

Sources used across the guide are gathered here. Labels show how each source supports the page, and contextual references are kept separate from primary evidence.

Questions & connections

Understand it, compare it, then explore further

Start with the most common factual questions, then compare closely related observances and explore useful connections.

Reader questions

Frequently asked questions

When is Congenital Diaphragmatic Hernia Awareness Day?

19 April The documented recurrence rule is: 19 April.

Does Congenital Diaphragmatic Hernia Awareness Day fall on the same date every year?

Yes. It uses a fixed annual date unless stronger evidence changes the pattern.

Is Congenital Diaphragmatic Hernia Awareness Day an official public holiday?

The reviewed sources verify it within this scope: Health-awareness observance organized and promoted by the CDH community. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when reliable evidence explicitly does so.

Who established or recognizes Congenital Diaphragmatic Hernia Awareness Day?

The documented basis is: CDH International identifies 19 April as Congenital Diaphragmatic Hernia Awareness Day; historic proclamations also document the observance.. Supporting evidence includes CDH International — Awareness materials. The site does not infer a separate creator or founder unless reviewed evidence establishes one.

Is Congenital Diaphragmatic Hernia Awareness Day international or country-specific?

No single country is assigned to this observance. Its documented scope is: Health-awareness observance organized and promoted by the CDH community. Use that scope rather than assuming worldwide or country-specific status.

How is this page verified?

The factual information is checked against reviewed sources, including the date pattern, scope and institutional history. This page was checked on 2026-09-07.

When is Congenital Diaphragmatic Hernia Awareness Day?

It is observed on April 19.

Why is it on April 19?

CDH Research International says the date marks the April 19, 2010 removal of a trademark on the phrase “Congenital Diaphragmatic Hernia Awareness.”

Who runs the observance now?

CDH Research International continues to promote April 19 awareness activity, while the wider CDH community also participates.

Is the day a statutory public holiday?

Available first-party material supports an awareness observance and local proclamations, not a federal or international statutory holiday.

Does this page give medical advice?

No. It is an observance guide and does not replace medical evaluation or care.

Explore further

Related observances with useful context

More in this topic →

Related observances are selected from shared topics, scope and documented connections. Where an important difference is known, it is labeled separately so “related” is not mistaken for “the same observance.”

Same date

Other observances on April 19

Date guide →

These observances are also listed on April 19, 2027.

Source-backedFixed AnnualIn-depth guide

National Amaretto Day

Informal food-calendar usage documented by Association of Nutrition & Foodservice Professionals chapter material

Two Association of Nutrition & Foodservice Professionals chapter calendars list National Amaretto Day on 19 April.

Source-backedFixed AnnualIn-depth guide

National Cat Lady Day

International / CatCon-created cat-lover celebration

CatCon states that founder Susan Michals created National Cat Lady Day in 2017 and that it takes place each year on April 19.

Source-backedFixed AnnualIn-depth guide

National North Dakota Day

United States / National Day Calendar National State Days series — North Dakota

National Day Calendar lists National North Dakota Day on 19 April. The U.S. Senate records North Dakota’s admission/statehood date as 2 November 1889. The two dates are deliberately kept se…

Source-backedFixed AnnualIn-depth guide

Oklahoma City Bombing Anniversary / Annual Remembrance Ceremony

Oklahoma City bombing remembrance; the canonical “National ... Commemoration Day” title is not treated as a federal holiday designation

The Oklahoma City National Memorial & Museum maintains an annual April 19 Remembrance Ceremony and NPS anchors the memorial scope. Proclamation 6880 designated April 19, 1996 as a one-time…