ICDcodes.org
FY2027

M20 — Acquired deformities of fingers and toes

Not billable

Is M20 billable?

No — M20 is a non-billable header code. M20 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 33 billable codes beneath M20.

Billable codes under this header

M20 at a glance

CodeM20
DescriptionAcquired deformities of fingers and toes
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Excludes1 — never code together

The conditions below can never be reported together with M20 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • acquired absence of fingers and toes (Z89.-)
  • congenital absence of fingers and toes (Q71.3-, Q72.3-)
  • congenital deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-)

Excludes2 — not included here — inherited from Chapter 13

The conditions below are not part of M20, but a patient may have both at the same time. When documentation supports it, M20 and the excluded code may both be reported.

  • 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)

Excludes2 — not included here — inherited from M20-M25

The conditions below are not part of M20, but a patient may have both at the same time. When documentation supports it, M20 and the excluded code may both be reported.

  • joints of the spine (M40-M54)

What codes fall under M20? (7)

How long has M20 existed?

M20 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.