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Home/Diagnosis/ICD-10 Coding for Knee Internal Derangement

ICD-10 Coding for Knee Internal Derangement

M23.2X1
M23.5X1

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

Also Known as:
Knee Derangement
Internal Knee Injury
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Key Information: ICD-10 Coding for Knee Internal Derangement

Essential facts and insights about ICD-10 Coding for Knee Internal Derangement

Use ICD-10 code M23.2X1 for derangement of meniscus due to old tear or injury, right knee, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Derangement of meniscus due to old tear or injury, right knee

Non-Billable
M23.2X1
Non-Billable

Diagnostic Criteria

clinical:
  • • MRI confirmation of meniscus tear
documentation:
  • • Documented history of chronic knee issues

Applicable To

  • • Chronic meniscus tear
  • • Old meniscus injury

Important Notes

  • • Ensure chronicity and laterality are documented to avoid unspecified coding.

Chronic instability of knee, right knee

Non-Billable
M23.5X1
Non-Billable

Diagnostic Criteria

clinical:
  • • Positive anterior drawer test
  • • MRI showing ligament laxity

Applicable To

  • • Chronic knee instability
  • • Ligament laxity

Important Notes

  • • Document specific tests confirming instability to support coding.
Ancillary Codes

Additional codes that may be used with this diagnosis

M23.91

Unspecified internal derangement of right knee

Use when specific details are not available, pending further investigation.

Frequently Asked Questions

How do you code a meniscus tear with chronic instability?

For a meniscus tear with chronic instability, use ICD-10 codes M23.2X1 for the meniscus tear and M23.5X1 for the chronic instability, ensuring documentation supports both conditions.

What is the ICD-10 code for unspecified knee derangement?

The ICD-10 code for unspecified knee derangement is M23.91 for the right knee and M23.92 for the left knee, used when specific details are unavailable.

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