ICDcodes.org
FY2027

M86.4 — Chronic osteomyelitis with draining sinus

Not billable

Is M86.4 billable?

No — M86.4 is a non-billable header code. M86.4 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 24 billable codes beneath M86.4.

Billable codes under this header

M86.4 at a glance

CodeM86.4
DescriptionChronic osteomyelitis with draining sinus
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Excludes1 — never code together — inherited from M86-M90

The conditions below can never be reported together with M86.4 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 osteopathies (M96.-)

Excludes1 — never code together — inherited from M86

The conditions below can never be reported together with M86.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

Use additional code — inherited from M86

Report an additional code alongside M86.4 to fully describe the condition. M86.4 is sequenced first.

  • code (B95-B97) to identify infectious agent
  • code to identify major osseous defect, if applicable (M89.7-)

Excludes2 — not included here — inherited from Chapter 13

The conditions below are not part of M86.4, but a patient may have both at the same time. When documentation supports it, M86.4 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)

Excludes2 — not included here — inherited from M86

The conditions below are not part of M86.4, but a patient may have both at the same time. When documentation supports it, M86.4 and the excluded code may both be reported.

What codes fall under M86.4? (10)

How long has M86.4 existed?

M86.4 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 M86 family? (8)