ICDcodes.org
FY2027

H66Suppurative and unspecified otitis media

Not billable

Is H66 billable?

No — H66 is a non-billable header code. H66 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 36 billable codes beneath H66.

Billable codes under this header

H66 at a glance

CodeH66
DescriptionSuppurative and unspecified otitis media
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Use additional code

Report an additional code alongside H66 to fully describe the condition. H66 is sequenced first.

  • code to identify:
  • exposure to environmental tobacco smoke (Z77.22)
  • exposure to tobacco smoke in the perinatal period (P96.81)
  • history of tobacco dependence (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)

Includes

Conditions classified to H66.

  • suppurative and unspecified otitis media with myringitis

Excludes2 — not included here — inherited from Chapter 8

The conditions below are not part of H66, but a patient may have both at the same time. When documentation supports it, H66 and the excluded code may both be reported.

  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • 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 H66? (6)

How long has H66 existed?

H66 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.

Which codes are confused with H66?

ICD-10-CM declares these codes mutually exclusive with H66 — exactly one of each pair can be correct for a given encounter.