M27.40

Unspecified cyst of jaw

Billable / specific

M27.40 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Applicable to

  • Cyst of jaw NOS

Includes (from M27)

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

Excludes1

Not coded here — never report together with this code.

  • cysts of oral region (K09.-) (from M27.4)
  • latent bone cyst of jaw (M27.0) (from M27.4)
  • Stafne's cyst (M27.0) (from M27.4)
  • hemifacial atrophy or hypertrophy (Q67.4) (from M27)
  • unilateral condylar hyperplasia or hypoplasia (M27.8) (from M27)

Excludes2

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

  • arthropathic psoriasis (L40.5-) (from M27)
  • certain conditions originating in the perinatal period (P04-P96) (from M27)
  • certain infectious and parasitic diseases (A00-B99) (from M27)
  • compartment syndrome (traumatic) (T79.A-) (from M27)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A) (from M27)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from M27)
  • endocrine, nutritional and metabolic diseases (E00-E88) (from M27)
  • injury, poisoning and certain other consequences of external causes (S00-T88) (from M27)
  • neoplasms (C00-D49) (from M27)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from M27)

Also known as

  • Cyst of jaw NOS
  • Cyst, alveolar process
  • Cyst, boneNEC, specified type NEC, jaw
  • Cyst, jaw
  • Cyst, mandible
  • Cyst, maxilla
  • Cyst, solitary, jaw

Parent code

  • M27.4Other and unspecified cysts of jawHeader

Related codes

  • M27.49Other cysts of jawBillable

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