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  1. ICD.Codes
  2. ICD-10-CM (2016)
  3. Chapter 13
  4. Section M20-M25
  5. Code M23

ICD-10-CM Code M23
Internal derangement of knee

NON-BILLABLE
Non-Billable Code
Non-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.
| ICD-10 from 2011 - 2016

ICD Code M23 is a non-billable code. To code a diagnosis of this type, you must use one of the eight child codes of M23 that describes the diagnosis 'internal derangement of knee' in more detail.

Coding Notes for M23 Info for medical coders on how to properly use this ICD-10 code

Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
Ankylosis - instead, use code M24.66
Current injury - see injury of knee and lower leg - instead, use Section S80-S89
Deformity of knee - instead, use code M21.-
Osteochondritis dissecans - instead, use code M93.2
Recurrent dislocation or subluxation of joints - instead, use code M24.4
Recurrent dislocation or subluxation of patella (M22.0-M22.1) - instead, use code M22.0-

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/M23