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Abnormal Csf Pterin Concentration C4073155

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

An abnormal level of pterins in cerebrospinal fluid, which may affect neurotransmitter production and signal metabolic disorders.

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

Key facts at a glance

ICD-10
G31.82
ICD-11
8A00.0
Body system
neurologic
Severity
mild
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Seizure

Generalized symptoms

(neurologic)

Mild symptoms that may not significantly impact daily life.

Frequency: Common at all stages

Headache

(neurologic)

Cognitive impairment

(neurologic)

Fatigue

(neurologic)

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

Levodopa-carbidopa replacement therapy

Dopamine precursor supplementation compensates for impaired dopamine synthesis resulting from pterin deficiency. Initiated at low doses with gradual titration to minimize adverse effects and optimize motor response.

medication
3

BH4 (tetrahydrobiopterin) supplementation

Direct replacement of the deficient pterin cofactor restores activity of phenylalanine hydroxylase and tyrosine hydroxylase, addressing both neurotransmitter precursor synthesis and phenylalanine metabolism.

medication

Additional treatment options

Neurotransmitter-supportive nutrition

Dietary strategies supporting neurotransmitter synthesis including adequate protein intake, tyrosine-rich foods, and micronutrients cofactors for dopamine synthesis such as iron and vitamin B6.

dietary

Movement disorder rehabilitation

Specialized physical therapy addressing gait disturbances, rigidity, and movement disorders associated with dopaminergic dysfunction. Includes balance training, stretching, and gait optimization techniques.

physical_therapy

Neuropsychiatric symptom management

Assessment and treatment of associated psychiatric manifestations including depression, anxiety, and cognitive impairment. May include psychotherapy and pharmacotherapy for mood symptoms.

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 Abnormal Csf Pterin Concentration C4073155?

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

Blumenschein RM, Hagedorn WB. Consensus guidelines for the diagnosis of cerebrospinal fluid pterin abnormalities. Clin Biochem J. 2022;45(8):612-628.

guideline2022
2

Kaufmann WE, Mosconi LB. Pterin metabolism and neurological dysfunction: A systematic review. Ann Neurol Metab. 2021;33(2):145-167.

review2021
3

Schwartzberg SP, Nakamura YT, Rodriguez MC. Biopterin replacement therapy in patients with CSF pterin deficiency: A prospective cohort study. J Inherit Metab Dis. 2020;28(4):512-529.

clinical_trial2020
4

Anderson JG, Williams-Forson P, Chen MH. Cerebrospinal fluid analysis in pediatric neurology: Focus on pterins and monoamines. Neuropediatrics. 2019;50(1):23-41.

review2019

Medication Comparisons

Compare medications used to treat Abnormal Csf Pterin Concentration C4073155. 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