ICD-10-CM Billable Code

E20.1

Pseudohypoparathyroidism

Clinical Classification Guidelines

Medical Intelligence & Overview

Pseudohypoparathyroidism is a rare inherited disorder where the body's tissues are resistant to the effects of parathyroid hormone (PTH). Despite having normal or elevated levels of PTH, individuals with this condition experience symptoms similar to those caused by low PTH levels, such as calcium deficiency and related bone changes. This condition can affect various parts of the body, leading to a range of health issues if not properly managed.

Causes & Symptoms

Clinical Causes: Genetic mutations affecting the GNAS gene, which plays a crucial role in hormone signaling pathways. Inheritance patterns that can be autosomal dominant or occur as new mutations. Disruption in the body's response to parathyroid hormone due to tissue resistance, particularly in the kidneys and bones.

Key Symptoms: Muscle cramps or twitching Tetany, which includes persistent muscle contractions Fatigue and general weakness Short stature or slowed growth in children Dizziness or lightheadedness Bony abnormalities, such as calcifications or deformities Low blood calcium levels (hypocalcemia) Elevated phosphate levels in the blood Developmental delays and intellectual difficulties in some cases

Diagnostic & Treatment

Diagnosis Path: Diagnosis of pseudohypoparathyroidism typically involves a combination of blood tests, genetic testing, and clinical evaluation. Key diagnostic steps include:

Treatment Protocols: There is no cure for pseudohypoparathyroidism, but treatment aims to manage symptoms and correct mineral imbalances. Common approaches include:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is E20.1 a billable ICD-10 code?
Yes, E20.1 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report E20.1?
Clinical documentation must specify the nature of Pseudohypoparathyroidism and any associated comorbidities for accurate reporting.

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