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ICD-10-CM Code for Unspecified internal derangement of knee M23.9

ICD-10 code M23.9 for Unspecified internal derangement of knee is a medical classification as listed by WHO under the range - Arthropathies .

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Official Long Descriptor

Unspecified internal derangement of knee

M23

Excludes1: ankylosis (M24.66)
deformity of knee (M21.-)
osteochondritis dissecans (M93.2)

Excludes2: current injury - see injury of knee and lower leg (S80-S89)
recurrent dislocation or subluxation of joints (M24.4)
recurrent dislocation or subluxation of patella (M22.0-M22.1)

 
M23.9 Unspecified internal derangement of knee
Child Code
Unspecified internal derangement of unspecified knee
Child Code
Unspecified internal derangement of right knee
Child Code
Unspecified internal derangement of left knee

Additional/Related Information

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Get crucial instructions for accurate ICD-10-CM M23.9 coding with all applicable Excludes 1 and Excludes 2 notes from the section level conveniently shown with each code.
This section shows you chapter-specific coding guidelines to increase your understanding and correct usage of the target ICD-10-CM Volume 1 code.

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Dx code M23.232
[QUOTE="sls314, post: 516318, member: 523015"] Here's a link to the applicable Aetna Clinical Policy Bulletin: [URL]https://www.aetna.com/cpb/medical/data/600_699/0673.html[/URL] For 29881, the poli... [ Read More ]
Dx code M23.232
[QUOTE="sandraclark5123@gmail.com, post: 516308, member: 784044"] We billed CPT 29881 and used dx code M23.232. Patient has commercial Aetna and they have denied our claim as the diagnosis is experime... [ Read More ]
Dx code M23.232
You are correct...M23.232 supports 29881. The issue is that you are dealing with AETNA. You will find that when you bill this and similar codes to other insurance companies there won't be an issue get... [ Read More ]
Dx code M23.232
We billed CPT 29881 and used dx code M23.232. Patient has commercial Aetna and they have denied our claim as the diagnosis is experimental. In my research this dx code is reimbursable. Is there anothe... [ Read More ]
Arthroscopic Excavation of Parameniscal Cyst
[QUOTE="AlanPechacek, post: 423274, member: 375416"] "Deja-vu" all over again, but with a new twist, a Parameniscal Cyst in addition to the partially torn ACL. I don't know whether the "Op Note" as y... [ Read More ]
Horizon denying E&M for valid Dx codes
We have been getting numerous denials from Horizon for "mismatch of dx code and procedure code". They are valid dx codes (not missing a letter or number, etc) so not sure what the issue is. When we c... [ Read More ]
medial collateral ligament thickening in the knee
[b]medial collateral ligament thickening[/b] I would recommend M23.8X and you will need to add a 6th digit depending on laterality. If there is a current injury I would code that instead.... [ Read More ]
Traumatic vs. Derangement
I agree with Orthocoderpgu. There's no indication of an injury or trauma so I would code your scenario as degenerative. [QUOTE]ICD-10-CM coding In ICD-10-CM, coders will be working in two different ... [ Read More ]
Need DX code for ACL Deficient Knee
Dear "Daedolos": In [B]ICD-10[/B], by definition the [B]M Codes[/B] are for [B]Disorders of the Musculoskeletal System[/B] that are [U]not[/U] the result of an [B]Injury[/B], for which the [B]S C... [ Read More ]
Need DX code for ACL Deficient Knee
Unfortunately, I doubt we will be able to solve this dilemma regarding [B]Chronic Instability of the Knee (M23.5)[/B] and [B]Old Ligamentous Injury (of the Knee) (M24.2)[/B] as ICD-10 is currently wri... [ Read More ]
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