M23.321
BillableOth meniscus derang, post horn of medial meniscus, r knee
Other meniscus derangements, posterior horn of medial meniscus, right knee
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- 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)
- joints of the spine (M40-M54)
- 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)
Also Known As / Clinical Terms
SNOMED CT
- Derangement of posterior horn of medial meniscus5313005
- Medial meniscus, posterior horn derangement5313005
- Chronic derangement of posterior horn of medial meniscus1343686002
- Chronic derangement of posterior horn of medial meniscus of left knee1343687006
- Chronic derangement of posterior horn of medial meniscus of right knee1343688001
- Bilateral derangement of knee15636251000119104
- Derangement of bilateral knees15636251000119104
- Internal derangement of bilateral knees15636251000119104
- Bilateral derangement of meniscus of knee joints16017031000119102
- Derangement of meniscus of bilateral knee joints16017031000119102
- Chronic derangement of posterior horn of medial meniscus of bilateral knees16017191000119102
- Chronic derangement of posterior horn of medial meniscus of both knees16017191000119102
- Derangement of medial meniscus of left knee297201000119108
- Derangement of medial meniscus of right knee297211000119106
- Derangement of posterior horn of medial meniscus of bilateral knees16017111000119106
- Derangement of posterior horn of medial meniscus of both knees16017111000119106
- Derangement of posterior horn of medial meniscus of left knee16017071000119104
- Derangement of posterior horn of medial meniscus of right knee16017151000119107
Frequently Asked Questions
What is the ICD-10 code for oth meniscus derang, post horn of medial meniscus, r knee?
The ICD-10-CM code for oth meniscus derang, post horn of medial meniscus, r knee is M23.321. The full clinical description is "Other meniscus derangements, posterior horn of medial meniscus, right knee". M23.321 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code M23.321 mean?
ICD-10-CM code M23.321 represents "Other meniscus derangements, posterior horn of medial meniscus, right knee". It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a billable/specific code that can be used on a claim.
Is M23.321 a billable code?
Yes, M23.321 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is M23.321 in?
M23.321 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M23.321?
M23.321 has Excludes1 notes indicating codes that cannot be used together with it, including: ankylosis (M24.66); deformity of knee (M21.-); osteochondritis dissecans (M93.2).
What SNOMED CT codes does M23.321 map to?
M23.321 maps to 12 SNOMED CT concepts: 15636251000119104, 16017031000119102, 1343686002, 16017191000119102, 1343687006, and 7 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for M23.321?
M23.321 is linked to 1 UMLS Concept Unique Identifier: C2894678. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.