M23.23 — Derangement of other medial meniscus due to old tear or injury
Is M23.23 billable?
No — M23.23 is a non-billable header code. M23.23 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath M23.23.
M23.23 at a glance
| Code | M23.23 |
|---|---|
| Description | Derangement of other medial meniscus due to old tear or injury |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is M23.23 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to M23.23. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Derangement › knee › meniscus › due to old tear or injury › medial › specified NEC
Excludes1 — never code together — inherited from M23
The conditions below can never be reported together with M23.23 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 13
The conditions below are not part of M23.23, but a patient may have both at the same time. When documentation supports it, M23.23 and the excluded code may both be reported.
- arthropathic psoriasis (L40.5-)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- compartment syndrome (traumatic) (T79.A-)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Excludes2 — not included here — inherited from M20-M25
The conditions below are not part of M23.23, but a patient may have both at the same time. When documentation supports it, M23.23 and the excluded code may both be reported.
- joints of the spine (M40-M54)
Excludes2 — not included here — inherited from M23
The conditions below are not part of M23.23, but a patient may have both at the same time. When documentation supports it, M23.23 and the excluded code may both be reported.
What codes fall under M23.23? (3)
How long has M23.23 existed?
M23.23 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the M23.2 family? (6)
- M23.20Derangement of unspecified meniscus due to old tear or injurynot billable
- M23.21Derangement of anterior horn of medial meniscus due to old tear or injurynot billable
- M23.22Derangement of posterior horn of medial meniscus due to old tear or injurynot billable
- M23.24Derangement of anterior horn of lateral meniscus due to old tear or injurynot billable
- M23.25Derangement of posterior horn of lateral meniscus due to old tear or injurynot billable
- M23.26Derangement of other lateral meniscus due to old tear or injurynot billable