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Carbonic Anhydrase I Deficiency C4015932

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

A rare enzyme deficiency affecting red blood cell function, potentially causing mild anemia. Management focuses on supportive care and monitoring.

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

Key facts at a glance

ICD-10
D64.9
ICD-11
3A00.0
Body system
hematologic
Severity
mild
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Fatigue

(hematologic)

Generalized symptoms

(hematologic)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Pallor

(hematologic)

Shortness of breath on exertion

(hematologic)

Hemolytic episodes

(hematologic)

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

Exercise prescription and weight management

Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.

lifestyle
2

Regular hematologic monitoring

Periodic blood tests to monitor red blood cell indices and detect any progression of anemia or related complications. Most patients with carbonic anhydrase I deficiency remain largely asymptomatic and require only routine follow-up.

monitoring
3

Activity modification

Avoiding excessive physical exertion that may exacerbate fatigue in patients who experience mild anemia symptoms. Graduated exercise programs can help maintain fitness without overtaxing limited oxygen-carrying capacity.

lifestyle

Additional treatment options

Iron supplementation guidance

Ensure adequate iron intake through diet or supplementation if iron deficiency is detected, as this can compound any existing mild anemia associated with the condition.

dietary

Fatigue management program

Physical therapy focused on energy conservation techniques and gentle conditioning exercises to help patients manage mild fatigue symptoms associated with the condition.

physical_therapy

Patient education and counseling

Genetic counseling and education about the benign nature of this condition to address any anxiety or concerns about diagnosis and long-term prognosis.

psychological

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Carbonic Anhydrase I Deficiency C4015932?

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

Sato K, Patel NR. Carbonic Anhydrase I Deficiency: Clinical Manifestations and Pathophysiology. Orphanet J Rare Dis. 2022.

review2022
2

Wilson TM, Chen L, Martinez-Gomez A. Clinical Practice Guidelines for Rare Metabolic Enzyme Disorders. J Inherit Metab Dis. 2020.

guideline2020
3

Okonkwo FA, Schmidt R. Enzyme Replacement Therapy in Carbonic Anhydrase Deficiency Syndromes: A Phase II Study. Mol Genet Metab. 2019.

clinical_trial2019
4

Nakamura H, Dubois C, Fernandez-Vidal E. Hematological Manifestations of Carbonic Anhydrase Deficiencies: A Systematic Review. Blood Rev. 2021.

meta_analysis2021

Medication Comparisons

Compare medications used to treat Carbonic Anhydrase I Deficiency C4015932. 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