H95.133Billable
Mucosal cyst of postmastoidectomy cavity, bilateral ears
- Chapter
- 8. Diseases of the ear and mastoid process
- Category
- H95
- Effective date
- October 1, 2026
Related codes in category H95
H95Intraop and postproc comp and disorders of ear/mastd, NECH95.0Recurrent cholesteatoma of postmastoidectomy cavityH95.00Recur cholesteatoma of postmastoidectomy cavity, unsp earYesH95.01Recur cholesteatoma of postmastoidectomy cavity, right earYesH95.02Recur cholesteatoma of postmastoidectomy cavity, left earYesH95.03Recurrent cholesteatoma of postmastoidectomy cavity, bi earsYesH95.1Oth disorders of ear/mastd following mastoidectomyH95.11Chronic inflammation of postmastoidectomy cavityH95.111Chronic inflammation of postmastoidectomy cavity, right earYesH95.112Chronic inflammation of postmastoidectomy cavity, left earYesH95.113Chronic inflam of postmastoidectomy cavity, bilateral earsYesH95.119Chronic inflammation of postmastoidectomy cavity, unsp earYes
Frequently asked questions
What is ICD-10 code H95.133?
H95.133 is an ICD-10-CM diagnosis code for Mucosal cyst of postmastoidectomy cavity, bilateral ears.
Is H95.133 a billable code?
Yes. H95.133 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is H95.133 in?
H95.133 falls under Chapter 8: Diseases of the ear and mastoid process.
When did H95.133 become effective?
H95.133 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to H95.133?
H95.133 belongs to category H95, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.