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ICD-10 Guide
ICD-10 CodesM83.9

M83.9

Billable

Adult osteomalacia, unspecified

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/17/2025

Code Description

ICD-10 M83.9 is a billable code used to indicate a diagnosis of adult osteomalacia, unspecified.

Key Diagnostic Point:

Adult osteomalacia is a metabolic bone disorder characterized by the softening of bones due to inadequate mineralization, primarily caused by vitamin D deficiency, malabsorption syndromes, or renal tubular dysfunction. This condition leads to a decrease in bone density and an increased risk of fractures. Patients may present with bone pain, muscle weakness, and an increased susceptibility to fractures, particularly in the vertebrae, pelvis, and long bones. Diagnosis typically involves clinical evaluation, laboratory tests to assess vitamin D levels, and imaging studies such as X-rays or dual-energy X-ray absorptiometry (DEXA) scans to evaluate bone density. Treatment focuses on correcting the underlying cause, which may include vitamin D supplementation, dietary modifications, and addressing any malabsorption issues. The unspecified nature of this code indicates that the specific cause of osteomalacia has not been determined, which can complicate treatment and management strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and underlying causes
  • Need for comprehensive documentation of symptoms and lab results
  • Differentiation from other bone density disorders like osteoporosis
  • Potential for co-existing conditions affecting bone metabolism

Audit Risk Factors

  • Inadequate documentation of vitamin D levels and treatment plans
  • Failure to specify the underlying cause of osteomalacia
  • Misdiagnosis or confusion with osteoporosis
  • Lack of follow-up documentation on treatment efficacy

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed lab results, including vitamin D levels and calcium metabolism assessments.

Common Clinical Scenarios

Patients presenting with bone pain, muscle weakness, and abnormal lab results indicating metabolic bone disease.

Billing Considerations

Endocrinologists must ensure comprehensive documentation of all metabolic factors contributing to osteomalacia.

Rheumatology

Documentation Requirements

Comprehensive patient history, including family history of bone disorders and previous fractures.

Common Clinical Scenarios

Patients with chronic pain and a history of vitamin D deficiency or malabsorption syndromes.

Billing Considerations

Rheumatologists should differentiate between osteomalacia and other inflammatory or degenerative bone diseases.

Coding Guidelines

Inclusion Criteria

Use M83.9 When
  • According to ICD
  • 10 coding guidelines, M83
  • 9 should be used when the specific cause of osteomalacia is not documented
  • Coders should ensure that all relevant clinical information is captured to support the diagnosis and any treatment provided

Exclusion Criteria

Do NOT use M83.9 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

80048CPT Code

Comprehensive metabolic panel

Clinical Scenario

Used to assess electrolyte levels and kidney function in patients suspected of having osteomalacia.

Documentation Requirements

Document all lab results and their relevance to the diagnosis.

Specialty Considerations

Endocrinologists should ensure that all metabolic factors are evaluated.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of osteomalacia, improving the ability to capture the nuances of the condition and its underlying causes. This specificity aids in better patient management and resource allocation.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of osteomalacia, improving the ability to capture the nuances of the condition and its underlying causes. This specificity aids in better patient management and resource allocation.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of osteomalacia, improving the ability to capture the nuances of the condition and its underlying causes. This specificity aids in better patient management and resource allocation.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What are the common causes of adult osteomalacia?

Common causes include vitamin D deficiency, malabsorption syndromes, chronic kidney disease, and certain medications that affect bone metabolism.