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Home/Diagnosis/ICD-10 Coding for Leg Length Discrepancy

ICD-10 Coding for Leg Length Discrepancy

M21.761
M21.762
Q72.8

Complete ICD-10-CM coding and documentation guide for icd-10 coding for leg length discrepancy includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
LLD
Limb Length Inequality
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Key Information: ICD-10 Coding for Leg Length Discrepancy

Essential facts and insights about ICD-10 Coding for Leg Length Discrepancy

Use ICD-10 code M21.761 for unequal limb length (acquired), right lower leg, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Unequal limb length (acquired), right lower leg

Billable Code
M21.761
Billable

Diagnostic Criteria

clinical:
  • • Imaging confirms acquired discrepancy in right lower leg
documentation:
  • • Laterality and etiology must be documented

Applicable To

  • • Acquired leg length discrepancy of right lower leg

Important Notes

  • • Ensure laterality is documented and confirmed by imaging.

Unequal limb length (acquired), left lower leg

Billable Code
M21.762
Billable

Diagnostic Criteria

clinical:
  • • Imaging confirmation such as scanogram showing discrepancy
documentation:
  • • Documentation of acquired etiology

Applicable To

  • • Acquired leg length discrepancy of left lower leg

Important Notes

  • • Ensure laterality is documented and confirmed by imaging.

Other congenital malformations of lower limb(s), including congenital leg length discrepancy

Non-Billable
Q72.8
Non-Billable

Diagnostic Criteria

clinical:
  • • Documented congenital etiology
documentation:
  • • Imaging or clinical confirmation of congenital discrepancy

Applicable To

  • • Congenital leg length discrepancy

Important Notes

  • • Ensure congenital nature is documented.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z47.89

Encounter for other orthopedic aftercare

Use for post-surgical aftercare related to leg length correction.

Frequently Asked Questions

What is the ICD-10 code for leg length discrepancy?

The ICD-10 codes for leg length discrepancy include M21.761 for acquired right lower leg discrepancy and Q72.8 for congenital cases.

How do you document leg length discrepancy?

Documentation must include laterality, etiology, and imaging confirmation, such as a scanogram showing the discrepancy.

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