Skip to content

Achondrogenesis Type Ib C0265274

Published: July 22, 2026Updated: August 20, 2026

A severe genetic skeletal disorder affecting cartilage and bone development. Most affected infants do not survive long after birth.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
Q79.9
ICD-11
LA00.0
Body system
musculoskeletal
Severity
fatal
Chronic
false

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Joint pain or stiffness

Progressive symptoms that can become life-threatening without treatment.

Seek immediate medical attention if symptoms worsen.

Fetal hydrops

(musculoskeletal)

Marked growth deficiency

(musculoskeletal)

Cleft palate

(musculoskeletal)

Cardiac anomalies

(musculoskeletal)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Neonatal Respiratory Management

Specialized respiratory support addressing the severe skeletal abnormalities that restrict lung development and chest expansion in achondrogenesis type IB.

procedure
2

Standard interventional procedure protocol

Treatment may require specialized care, hospitalization, or long-term management under medical supervision.

procedure
3

Integrated Palliative Care

Holistic palliative care approach combining medical symptom management with psychological, spiritual, and emotional support for the entire family unit.

psychological

Additional treatment options

Skeletal Abnormality Assessment

Regular assessment of skeletal deformities and their impact on comfort and function, with appropriate positioning aids and gentle handling protocols.

monitoring

Specialized Nutritional Planning

Individualized nutrition plan considering the infant's specific needs and ability to feed, with adjustments based on comfort and tolerance.

dietary

Reproductive Health Counseling

Detailed discussion of genetic causes, inheritance patterns, and comprehensive family planning options including prenatal diagnosis for future pregnancies.

complementary

When to seek medical help

Recognize when you need immediate medical attention.

Call emergency services (911) immediately

!

Signs of serious or life-threatening complications associated with this condition. Immediate medical evaluation is required.

Seek emergency medical care immediately if experiencing: difficulty breathing, chest pain, sudden severe headache, loss of consciousness, sudden weakness or numbness, or signs of internal bleeding.

Frequently asked questions

Common questions about this topic.

Q

What is Achondrogenesis Type Ib C0265274?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Horton WA, Unger S, Bompelli O. Molecular genetics of skeletal dysplasias: focus on achondrogenesis. Orphanet J Rare Dis. 2019.

review2019
2

International Consortium for Bone Dysplasias. Diagnostic criteria and clinical management of severe skeletal dysplasias. Am J Med Genet A. 2021.

guideline2021
3

Kornak U, Mundlos S. Achondrogenesis Type IB: pathology and molecular basis. Nat Rev Endocrinol. 2018.

other2018
4

Mortier GR, Cohn DH, Cormier-Daire V, et al. Nosology and classification of genetic skeletal disorders. Eur J Hum Genet. 2020.

review2020

Medication Comparisons

Compare medications used to treat Achondrogenesis Type Ib C0265274. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy