M23.41 is the authoritative medical code for Loose body in knee, right knee. This classification is used in medical billing and clinical recording to specify the clinical criteria for loose body in knee, right knee (ICD-10-CM M23.41), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Loose body in knee, right knee is a billable ICD-10-CM diagnosis code M23.41. Excludes1 (not coded here): ankylosis M24.66; deformity of knee M21.-; osteochondritis dissecans M93.2. Excludes2 (not included here): 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; joints of the spine M40-M54.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for M23.41 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- ankylosis M24.66
- deformity of knee M21.-
- osteochondritis dissecans M93.2
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- 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
- joints of the spine M40-M54
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with M23.41?
Per Excludes1 instructions, M23.41 must not be reported with: ankylosis (M24.66); deformity of knee (M21.-); osteochondritis dissecans (M93.2).
Can M23.41 be reported alongside related conditions?
Per Excludes2 instructions, M23.41 and the following may both be reported when both are present: 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); joints of the spine (M40-M54).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as M23.41, with their registry titles.
- M23 — Internal derangement of knee
- M23.0 — Cystic meniscus
- M23.00 — Cystic meniscus, unspecified meniscus
- M23.000 — Cystic meniscus, unspecified lateral meniscus, right knee
- M23.001 — Cystic meniscus, unspecified lateral meniscus, left knee
- M23.002 — Cystic meniscus, unspecified lateral meniscus, unspecified knee
- M23.003 — Cystic meniscus, unspecified medial meniscus, right knee
- M23.004 — Cystic meniscus, unspecified medial meniscus, left knee
- M23.005 — Cystic meniscus, unspecified medial meniscus, unspecified knee
- M23.006 — Cystic meniscus, unspecified meniscus, right knee
- M23.007 — Cystic meniscus, unspecified meniscus, left knee
- M23.009 — Cystic meniscus, unspecified meniscus, unspecified knee
- M23.01 — Cystic meniscus, anterior horn of medial meniscus
- M23.011 — Cystic meniscus, anterior horn of medial meniscus, right knee
- M23.012 — Cystic meniscus, anterior horn of medial meniscus, left knee
- M23.019 — Cystic meniscus, anterior horn of medial meniscus, unspecified knee
- M23.02 — Cystic meniscus, posterior horn of medial meniscus
- M23.021 — Cystic meniscus, posterior horn of medial meniscus, right knee
- M23.022 — Cystic meniscus, posterior horn of medial meniscus, left knee
- M23.029 — Cystic meniscus, posterior horn of medial meniscus, unspecified knee
- M23.03 — Cystic meniscus, other medial meniscus
- M23.031 — Cystic meniscus, other medial meniscus, right knee
- M23.032 — Cystic meniscus, other medial meniscus, left knee
- M23.039 — Cystic meniscus, other medial meniscus, unspecified knee
- M23.04 — Cystic meniscus, anterior horn of lateral meniscus
- M23.041 — Cystic meniscus, anterior horn of lateral meniscus, right knee
- M23.042 — Cystic meniscus, anterior horn of lateral meniscus, left knee
- M23.049 — Cystic meniscus, anterior horn of lateral meniscus, unspecified knee
- M23.05 — Cystic meniscus, posterior horn of lateral meniscus
- M23.051 — Cystic meniscus, posterior horn of lateral meniscus, right knee
- M23.052 — Cystic meniscus, posterior horn of lateral meniscus, left knee
- M23.059 — Cystic meniscus, posterior horn of lateral meniscus, unspecified knee
- M23.06 — Cystic meniscus, other lateral meniscus
- M23.061 — Cystic meniscus, other lateral meniscus, right knee
- M23.062 — Cystic meniscus, other lateral meniscus, left knee
- M23.069 — Cystic meniscus, other lateral meniscus, unspecified knee
- M23.2 — Derangement of meniscus due to old tear or injury
- M23.20 — Derangement of unspecified meniscus due to old tear or injury
- M23.200 — Derangement of unspecified lateral meniscus due to old tear or injury, right knee
- M23.201 — Derangement of unspecified lateral meniscus due to old tear or injury, left knee
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: