ICDcodes.org
FY2027

M91.4 — Coxa magna

Not billable

Is M91.4 billable?

No — M91.4 is a non-billable header code. M91.4 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 3 billable codes beneath M91.4.

M91.4 at a glance

CodeM91.4
DescriptionCoxa magna
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

How is M91.4 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to M91.4. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Coxa › magna

Excludes1 — never code together — inherited from M91-M94

The conditions below can never be reported together with M91.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • postprocedural chondropathies (M96.-)

Excludes1 — never code together — inherited from M91

The conditions below can never be reported together with M91.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • slipped upper femoral epiphysis (nontraumatic) (M93.0-)

Excludes2 — not included here — inherited from Chapter 13

The conditions below are not part of M91.4, but a patient may have both at the same time. When documentation supports it, M91.4 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)

What codes fall under M91.4? (3)

How long has M91.4 existed?

M91.4 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.

What other codes are in the M91 family? (6)