M23.21Non-billable
Derangement of anterior horn of medial meniscus due to old tear or injury
Chapter 13: Diseases of the musculoskeletal system and connective tissue
Coding Guidance
M23.21 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail. See Related Codes to drill down to more specific billable codes for appropriate reimbursement.
Referenced in Diagnoses
Conditions that use this ICD-10 code in their documentation
View documentation for knee meniscus tear
knee meniscus tear
View TemplatesTear of meniscus, current injury
View documentation for meniscal tear
meniscal tear
View TemplatesMeniscal Tear
View documentation for meniscus injury
meniscus injury
View TemplatesMeniscus Tear
View documentation for meniscus tear
meniscus tear
View TemplatesMeniscus Tear
View documentation for pain in the right knee
pain in the right knee
View TemplatesRight Knee Pain
View documentation for tear of medial meniscus
tear of medial meniscus
View TemplatesTear of Medial Meniscus of Knee
View documentation for torn meniscus
torn meniscus
View TemplatesMeniscus Tear
Additional Information from Parent Codes
The following information may apply to this code from its parent codes in the ICD-10 hierarchy. This information is important for proper coding and classification.
Parent Codes Referenced:
Inclusion Terms
1 item
Inclusion Terms
From M23.2:
- •Old bucket-handle tear
Excludes2
13 items
Excludes2
From M00-M99:
- •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-)
- •
- •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)
Notes
1 item
Notes
From M00-M99:
- •Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition