Is M23 a billable ICD-10 code?

No, M23 is not a billable code. It is a category code that requires additional specificity. You must select a more specific code from the subcategories for billing purposes.

What does ICD-10 code M23 mean?

ICD-10-CM code M23 represents Internal derangement of knee. This code is part of the International Classification of Diseases, 10th Revision, Clinical Modification used for medical coding and billing in the United States.

What is the parent category for ICD-10 code M23?

The parent category for M23 is section:M20-M25 (Other joint disorders (M20-M25)). This hierarchical classification helps organize related diagnoses for more accurate coding.

What conditions are excluded from M23?

Code M23 has Type 1 Excludes (mutually exclusive conditions) including: ankylosis (M24.66); deformity of knee (M21.-); osteochondritis dissecans (M93.2). These conditions cannot be coded together with M23 as they represent different diagnoses.

M232026

Non-billable

Internal derangement of knee

Clinical Notes

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

FAQ

Related Codes

M23Internal derangement of knee

M23.0Cystic meniscus

M23.00unspecified meniscus

M23.000Cystic meniscus, unspecified lateral meniscus, right knee

M23.001Cystic meniscus, unspecified lateral meniscus, left knee

M23.002Cystic meniscus, unspecified lateral meniscus, unspecified knee

M23.003Cystic meniscus, unspecified medial meniscus, right knee

M23.004Cystic meniscus, unspecified medial meniscus, left knee

M23.005Cystic meniscus, unspecified medial meniscus, unspecified knee

M23.006Cystic meniscus, unspecified meniscus, right knee

M23.007Cystic meniscus, unspecified meniscus, left knee

M23.009Cystic meniscus, unspecified meniscus, unspecified knee

M23.01anterior horn of medial meniscus

M23.011Cystic meniscus, anterior horn of medial meniscus, right knee

M23.012Cystic meniscus, anterior horn of medial meniscus, left knee

M23.019Cystic meniscus, anterior horn of medial meniscus, unspecified knee

M23.02posterior horn of medial meniscus

M23.021Cystic meniscus, posterior horn of medial meniscus, right knee

M23.022Cystic meniscus, posterior horn of medial meniscus, left knee

M23.029Cystic meniscus, posterior horn of medial meniscus, unspecified knee

M23.03other medial meniscus

M23.031Cystic meniscus, other medial meniscus, right knee

M23.032Cystic meniscus, other medial meniscus, left knee

M23.039Cystic meniscus, other medial meniscus, unspecified knee

M23.04anterior horn of lateral meniscus

M23.041Cystic meniscus, anterior horn of lateral meniscus, right knee

M23.042Cystic meniscus, anterior horn of lateral meniscus, left knee

M23.049Cystic meniscus, anterior horn of lateral meniscus, unspecified knee

M23.05posterior horn of lateral meniscus

M23.051Cystic meniscus, posterior horn of lateral meniscus, right knee

M23.052Cystic meniscus, posterior horn of lateral meniscus, left knee

M23.059Cystic meniscus, posterior horn of lateral meniscus, unspecified knee

M23.06other lateral meniscus

M23.061Cystic meniscus, other lateral meniscus, right knee

M23.062Cystic meniscus, other lateral meniscus, left knee

M23.069Cystic meniscus, other lateral meniscus, unspecified knee

M23.2Derangement of meniscus due to old tear or injury

M23.20Derangement of unspecified meniscus due to old tear or injury

M23.200Derangement of unspecified lateral meniscus due to old tear or injury, right knee

M23.201Derangement of unspecified lateral meniscus due to old tear or injury, left knee

M23.202Derangement of unspecified lateral meniscus due to old tear or injury, unspecified knee

M23.203Derangement of unspecified medial meniscus due to old tear or injury, right knee

M23.204Derangement of unspecified medial meniscus due to old tear or injury, left knee

M23.205Derangement of unspecified medial meniscus due to old tear or injury, unspecified knee

M23.206Derangement of unspecified meniscus due to old tear or injury, right knee

M23.207Derangement of unspecified meniscus due to old tear or injury, left knee

M23.209Derangement of unspecified meniscus due to old tear or injury, unspecified knee

M23.21Derangement of anterior horn of medial meniscus due to old tear or injury

M23.211Derangement of anterior horn of medial meniscus due to old tear or injury, right knee

M23.212Derangement of anterior horn of medial meniscus due to old tear or injury, left knee

M23.219Derangement of anterior horn of medial meniscus due to old tear or injury, unspecified knee

M23.22Derangement of posterior horn of medial meniscus due to old tear or injury

M23.221Derangement of posterior horn of medial meniscus due to old tear or injury, right knee

M23.222Derangement of posterior horn of medial meniscus due to old tear or injury, left knee

M23.229Derangement of posterior horn of medial meniscus due to old tear or injury, unspecified knee

M23.23Derangement of other medial meniscus due to old tear or injury

M23.231Derangement of other medial meniscus due to old tear or injury, right knee

M23.232Derangement of other medial meniscus due to old tear or injury, left knee

M23.239Derangement of other medial meniscus due to old tear or injury, unspecified knee

M23.24Derangement of anterior horn of lateral meniscus due to old tear or injury

M23.241Derangement of anterior horn of lateral meniscus due to old tear or injury, right knee

M23.242Derangement of anterior horn of lateral meniscus due to old tear or injury, left knee

M23.249Derangement of anterior horn of lateral meniscus due to old tear or injury, unspecified knee

M23.25Derangement of posterior horn of lateral meniscus due to old tear or injury

M23.251Derangement of posterior horn of lateral meniscus due to old tear or injury, right knee

M23.252Derangement of posterior horn of lateral meniscus due to old tear or injury, left knee

M23.259Derangement of posterior horn of lateral meniscus due to old tear or injury, unspecified knee

M23.26Derangement of other lateral meniscus due to old tear or injury

M23.261Derangement of other lateral meniscus due to old tear or injury, right knee

M23.262Derangement of other lateral meniscus due to old tear or injury, left knee

M23.269Derangement of other lateral meniscus due to old tear or injury, unspecified knee

M23.3Other meniscus derangements

M23.30unspecified meniscus

M23.300unspecified lateral meniscus, right knee

M23.301unspecified lateral meniscus, left knee

M23.302unspecified lateral meniscus, unspecified knee

M23.303unspecified medial meniscus, right knee

M23.304unspecified medial meniscus, left knee

M23.305unspecified medial meniscus, unspecified knee

M23.306unspecified meniscus, right knee

M23.307unspecified meniscus, left knee

M23.309unspecified meniscus, unspecified knee

M23.31anterior horn of medial meniscus

M23.311anterior horn of medial meniscus, right knee

M23.312anterior horn of medial meniscus, left knee

M23.319anterior horn of medial meniscus, unspecified knee

M23.32posterior horn of medial meniscus

M23.321posterior horn of medial meniscus, right knee

M23.322posterior horn of medial meniscus, left knee

M23.329posterior horn of medial meniscus, unspecified knee

M23.33other medial meniscus

M23.331other medial meniscus, right knee

M23.332other medial meniscus, left knee

M23.339other medial meniscus, unspecified knee

M23.34anterior horn of lateral meniscus

M23.341anterior horn of lateral meniscus, right knee

M23.342anterior horn of lateral meniscus, left knee

M23.349anterior horn of lateral meniscus, unspecified knee

M23.35posterior horn of lateral meniscus

M23.351posterior horn of lateral meniscus, right knee

M23.352posterior horn of lateral meniscus, left knee

M23.359posterior horn of lateral meniscus, unspecified knee

M23.36other lateral meniscus

M23.361other lateral meniscus, right knee

M23.362other lateral meniscus, left knee

M23.369other lateral meniscus, unspecified knee

M23.4Loose body in knee

M23.40Loose body in knee, unspecified knee

M23.41Loose body in knee, right knee

M23.42Loose body in knee, left knee

M23.5Chronic instability of knee

M23.50Chronic instability of knee, unspecified knee

M23.51Chronic instability of knee, right knee

M23.52Chronic instability of knee, left knee

M23.6Other spontaneous disruption of ligament(s) of knee

M23.60of unspecified ligament of knee

M23.601of unspecified ligament of right knee

M23.602of unspecified ligament of left knee

M23.609of unspecified ligament of unspecified knee

M23.61of anterior cruciate ligament of knee

M23.611of anterior cruciate ligament of right knee

M23.612of anterior cruciate ligament of left knee

M23.619of anterior cruciate ligament of unspecified knee

M23.62of posterior cruciate ligament of knee

M23.621of posterior cruciate ligament of right knee

M23.622of posterior cruciate ligament of left knee

M23.629of posterior cruciate ligament of unspecified knee

M23.63of medial collateral ligament of knee

M23.631of medial collateral ligament of right knee

M23.632of medial collateral ligament of left knee

M23.639of medial collateral ligament of unspecified knee

M23.64of lateral collateral ligament of knee

M23.641of lateral collateral ligament of right knee

M23.642of lateral collateral ligament of left knee

M23.649of lateral collateral ligament of unspecified knee

M23.67of capsular ligament of knee

M23.671of capsular ligament of right knee

M23.672of capsular ligament of left knee

M23.679of capsular ligament of unspecified knee

M23.8Other internal derangements of knee

M23.8Xof knee

M23.8X1of right knee

M23.8X2of left knee

M23.8X9of unspecified knee

M23.9Unspecified internal derangement of knee

M23.90of unspecified knee

M23.91of right knee

M23.92of left knee

Related Categories

M20Acquired deformities of fingers and toes M21Other acquired deformities of limbs M22Disorder of patella M24Other specific joint derangements M25Other joint disorder, not elsewhere classified