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Home/Diagnosis/ICD-10 Coding for Hallux Rigidus

ICD-10 Coding for Hallux Rigidus

M20.21
M20.22

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

Also Known as:
Stiff Big Toe
Hallux Limitus
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Key Information: ICD-10 Coding for Hallux Rigidus

Essential facts and insights about ICD-10 Coding for Hallux Rigidus

Use ICD-10 code M20.21 for hallux rigidus, right foot, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Hallux rigidus, right foot

Billable Code
M20.21
Billable

Diagnostic Criteria

  • • Radiographic evidence of joint degeneration
  • • Limited dorsiflexion measurement

Applicable To

  • • Right foot hallux rigidus

Important Notes

  • • Ensure laterality is documented to avoid unspecified coding.

Hallux rigidus, left foot

Billable Code
M20.22
Billable

Diagnostic Criteria

  • • Radiographic evidence of joint degeneration
  • • Limited dorsiflexion measurement

Applicable To

  • • Left foot hallux rigidus

Important Notes

  • • Ensure laterality is documented to avoid unspecified coding.
Frequently Asked Questions

What is the ICD-10 code for hallux rigidus?

The ICD-10 codes for hallux rigidus are M20.21 for the right foot and M20.22 for the left foot, requiring documentation of laterality.

How do you code bilateral hallux rigidus?

For bilateral hallux rigidus, use both M20.21 and M20.22 to specify involvement of both feet.

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