M23.4

Loose body in knee

Non-billable header

M23.4 is a non-billable header code. Use one of the more specific codes below.

Inclusion terms

Note: Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Not coded here — never report together with this code.

Not included here — may be reported together when both conditions exist.

arthropathic psoriasis (L40.5-) (from M23)
certain conditions originating in the perinatal period (P04-P96) (from M23)
certain infectious and parasitic diseases (A00-B99) (from M23)
compartment syndrome (traumatic) (T79.A-) (from M23)
complications of pregnancy, childbirth and the puerperium (O00-O9A) (from M23)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from M23)
endocrine, nutritional and metabolic diseases (E00-E88) (from M23)
injury, poisoning and certain other consequences of external causes (S00-T88) (from M23)
neoplasms (C00-D49) (from M23)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from M23)
joints of the spine (M40-M54) (from M23)
current injury - see injury of knee and lower leg (S80-S89) (from M23)
recurrent dislocation or subluxation of joints (M24.4) (from M23)
recurrent dislocation or subluxation of patella (M22.0-M22.1) (from M23)