ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesM21.519

M21.519

Billable

Acquired clawhand, unspecified hand

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

Code Description

ICD-10 M21.519 is a billable code used to indicate a diagnosis of acquired clawhand, unspecified hand.

Key Diagnostic Point:

Acquired clawhand, also known as claw fingers, is a deformity characterized by the flexion of the proximal interphalangeal joints and extension of the distal interphalangeal joints, resulting in a claw-like appearance of the hand. This condition can arise from various causes, including neurological disorders, trauma, or conditions that affect the tendons and muscles of the hand. Unlike congenital clawhand, which is present at birth, acquired clawhand develops later in life due to underlying medical issues such as peripheral nerve injuries, rheumatoid arthritis, or other inflammatory conditions. The severity of the deformity can vary, impacting hand function and the ability to perform daily activities. Treatment options may include physical therapy, splinting, and surgical interventions aimed at correcting the deformity and restoring function. Accurate diagnosis and coding are essential for appropriate management and reimbursement, as the condition can significantly affect a patient's quality of life.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes leading to the condition
  • Differentiation from congenital clawhand
  • Potential for co-existing conditions affecting coding
  • Variability in clinical presentation and severity

Audit Risk Factors

  • Insufficient documentation of the underlying cause
  • Lack of specificity regarding the affected hand
  • Inconsistent use of related codes
  • Failure to document treatment plans or interventions

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed notes on the patient's history, physical examination findings, and treatment plans.

Common Clinical Scenarios

Patients presenting with hand deformities post-trauma or due to degenerative diseases.

Billing Considerations

Documentation should include the extent of functional impairment and any surgical interventions performed.

Neurology

Documentation Requirements

Comprehensive neurological assessments and diagnostic imaging results.

Common Clinical Scenarios

Patients with neurological conditions leading to muscle weakness or spasticity affecting hand function.

Billing Considerations

Documenting the neurological basis for the clawhand is crucial for accurate coding.

Coding Guidelines

Inclusion Criteria

Use M21.519 When
  • According to ICD
  • 10 guidelines, M21
  • 519 should be used when the specific hand affected is not documented
  • Coders should ensure that the diagnosis is supported by clinical documentation and that any underlying conditions are also coded appropriately

Exclusion Criteria

Do NOT use M21.519 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

26340CPT Code

Tendon transfer, hand

Clinical Scenario

Used in surgical correction of clawhand deformity.

Documentation Requirements

Operative notes detailing the procedure and pre-operative assessments.

Specialty Considerations

Orthopedic surgeons should document the rationale for surgical intervention.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of acquired clawhand, enabling better tracking of the condition and its management. This specificity aids in research and improves the quality of care provided to patients.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of acquired clawhand, enabling better tracking of the condition and its management. This specificity aids in research and improves the quality of care provided to patients.

Reimbursement & Billing Impact

impact on daily functioning is also essential for justifying the medical necessity of treatments.

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 is the difference between acquired clawhand and congenital clawhand?

Acquired clawhand develops later in life due to various conditions such as nerve damage or muscle weakness, while congenital clawhand is present at birth and is typically due to genetic factors.