M45.9

Ankylosing spondylitis of unspecified sites in spine

Billable / specificHCC V28 93

M45.9 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

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 M45)
certain conditions originating in the perinatal period (P04-P96) (from M45)
certain infectious and parasitic diseases (A00-B99) (from M45)
compartment syndrome (traumatic) (T79.A-) (from M45)
complications of pregnancy, childbirth and the puerperium (O00-O9A) (from M45)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from M45)
endocrine, nutritional and metabolic diseases (E00-E88) (from M45)
injury, poisoning and certain other consequences of external causes (S00-T88) (from M45)
neoplasms (C00-D49) (from M45)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from M45)
Behçet's disease (M35.2) (from M45)