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ICD-10 Guide
ICD-10 CodesE55.9

E55.9

Billable

Vitamin D deficiency, unspecified

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 E55.9 is a billable code used to indicate a diagnosis of vitamin d deficiency, unspecified.

Key Diagnostic Point:

Vitamin D deficiency is a condition characterized by insufficient levels of vitamin D in the body, which is crucial for maintaining bone health and calcium metabolism. Vitamin D can be obtained through dietary sources, such as fatty fish, fortified dairy products, and exposure to sunlight. Deficiency can lead to various health issues, including osteomalacia in adults and rickets in children. Symptoms may include bone pain, muscle weakness, and an increased risk of fractures. The condition can arise from inadequate dietary intake, malabsorption syndromes, or insufficient sunlight exposure. Diagnosis typically involves measuring serum 25-hydroxyvitamin D levels. Treatment often includes dietary modifications, increased sun exposure, and vitamin D supplementation. The unspecified nature of this code indicates that the specific cause or severity of the deficiency has not been determined, which may complicate treatment and management strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for precise documentation of dietary intake and sun exposure
  • Differentiation from other vitamin deficiencies
  • Potential for coexisting conditions affecting vitamin D metabolism

Audit Risk Factors

  • Inadequate documentation of symptoms and clinical findings
  • Failure to specify the cause of deficiency
  • Lack of follow-up documentation on treatment efficacy
  • Inconsistent use of laboratory results to support diagnosis

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Thorough documentation of patient history, dietary habits, and laboratory results.

Common Clinical Scenarios

Patients presenting with osteoporosis, unexplained bone pain, or muscle weakness.

Billing Considerations

Consideration of other endocrine disorders that may affect vitamin D metabolism.

Pediatrics

Documentation Requirements

Detailed dietary history and growth assessments.

Common Clinical Scenarios

Children with rickets or delayed growth patterns.

Billing Considerations

Monitoring for developmental milestones and dietary intake in infants and children.

Coding Guidelines

Inclusion Criteria

Use E55.9 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of clinical findings and laboratory results
  • Include any relevant history of dietary intake and sun exposure

Exclusion Criteria

Do NOT use E55.9 When
  • Exclude conditions that may mimic vitamin D deficiency

Related ICD-10 Codes

Related CPT Codes

80061CPT Code

Lipid panel

Clinical Scenario

Often ordered alongside vitamin D testing to assess overall health.

Documentation Requirements

Document the reason for testing and any relevant patient history.

Specialty Considerations

Endocrinologists may frequently order this panel for patients with metabolic concerns.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of vitamin deficiencies, improving the ability to track and manage these conditions effectively.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of vitamin deficiencies, improving the ability to track and manage these conditions effectively.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of vitamin deficiencies, improving the ability to track and manage these conditions effectively.

Resources

Clinical References

  • •
    Vitamin D Deficiency: A Clinical Overview

Coding & Billing References

  • •
    Vitamin D Deficiency: A Clinical Overview

Frequently Asked Questions

What are the common causes of vitamin D deficiency?

Common causes include inadequate dietary intake, limited sun exposure, malabsorption syndromes, and certain medical conditions that affect vitamin D metabolism.