M40.205

Unspecified kyphosis, thoracolumbar region

FY2027Chapter 13: Diseases of the musculoskeletal system and connective tissue/M40–M43 Deforming dorsopathies

BillableComplete code, valid to report

M40.205 (also written M40205) is a billable ICD-10-CM diagnosis code for unspecified kyphosis, thoracolumbar region. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 31 codes in category M40 (Kyphosis and lordosis). The Alphabetic Index lists it under 1 entry. Its coding notes include a Code first instruction, 3 Excludes1 entries and 10 Excludes2 entries.

Code first

If the underlying condition listed here is present and known, sequence it first.

Inherited from M40 Kyphosis and lordosis
  • underlying disease

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Inherited from M40 Kyphosis and lordosis
  • congenital kyphosis and lordosis (Q76.4)
  • kyphoscoliosis (M41.-)
  • postprocedural kyphosis and lordosis (M96.-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (10 notes)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • 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)

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 1 entry