H65.04

Acute serous otitis media, recurrent, right ear

FY2027Chapter 8: Diseases of the ear and mastoid process/H65–H75 Diseases of middle ear and mastoid

BillableComplete code, valid to report

H65.04 (also written H6504) is a billable ICD-10-CM diagnosis code for acute serous otitis media, recurrent, right ear. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 44 codes in category H65 (Nonsuppurative otitis media). Its coding notes include a Use additional code instruction and 8 Excludes2 entries.

Use additional code

Add the listed code as a secondary code, if known.

Inherited from H65 Nonsuppurative otitis media
  • code for any associated perforated tympanic membrane (H72.-)
  • code, if applicable, 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)
    • infectious agent (B95-B97)
    • occupational exposure to environmental tobacco smoke (Z57.31)
    • tobacco dependence (F17.-)
    • tobacco use (Z72.0)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (8 notes)
Inherited from Chapter 8 Diseases of the ear and mastoid process
  • 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)

Care settings

How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.

Home Health Primary

Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Other clinical group.

Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026

Includes

Further defines or gives examples of the content of the category.

Inherited from H65 Nonsuppurative otitis media
  • nonsuppurative otitis media with myringitis

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 8 Diseases of the ear and mastoid process
  • Use an external cause code following the code for the ear condition, if applicable, to identify the cause of the ear condition