H90 vs H91.8X9
H90 (Conductive and sensorineural hearing loss) compared with H91.8X9 (Other specified hearing loss, unspecified ear), from the official CMS tabular data.
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources
Summary
No coding relationship between these codes was found in the tabular notes or in MedCoder’s derived relationships.
- What is different?
The conditions named and billing status.H90 is “Conductive and sensorineural hearing loss”; H91.8X9 is “Other specified hearing loss, unspecified ear”. H90 is a non-billable header; H91.8X9 is billable.
Registry fact
- Is one a parent or header code?
One is a header.H90 is a non-billable header, but H91.8X9 is not one of its subdivisions.
Registry fact
Nothing found in 5 other checks; 1 check does not apply
- Can these codes be reported together?
No instruction prevents it.No note in either entry names the other, and no derived relationship links them. Each may be reported when its own documentation requirements are met.
Registry fact
- Is there an Excludes1 relationship?
None.Neither entry carries an Excludes1 note that names the other code. H90 carries 6 Excludes1 notes and H91.8X9 carries 6 Excludes1 notes covering other codes; the side-by-side table quotes them.
Official rule
- Is there an Excludes2 relationship?
None.Neither entry carries an Excludes2 note that names the other code.
Official rule
- Is one more specific?
Not comparable.The codes sit in different categories; specificity is only comparable within one category.
- Are there sequencing instructions?
None.Neither entry carries a Code First or Use Additional Code note that names the other.
Official rule
- Are there other coding relationships?
None found.No laterality, encounter-phase, Table of Neoplasms, Table of Drugs and Chemicals, or history-versus-active-disease relationship links these codes.
MedCoder-derived
Official rule: a tabular instructional note or a section of the ICD-10-CM Official Guidelines, quoted as published. Registry fact: the codes’ own published attributes (titles, billable status, position in the hierarchy, code set). MedCoder-derived: a reading MedCoder computes from those facts; it is not itself a rule. How to read the labels
Can these codes be reported together?
Yes.
No Excludes1/Excludes2 relationship exists between these codes in the official tabular list. Each may be reported when its own documentation requirements are met.
Side by side
Similar descriptions do not make codes interchangeable. The documentation and the official instructions decide which code applies.
Conductive and sensorineural hearing loss
Other specified hearing loss, unspecified ear
- deaf nonspeaking NEC (H91.3)
- deafness NOS (H91.9-)
- hearing loss NOS (H91.9-)
- ototoxic hearing loss (H91.0-)
- sudden (idiopathic) hearing loss (H91.2-)
- abnormal auditory perception (H93.2-)
- hearing loss as classified in H90.-
- impacted cerumen (H61.2-)
- psychogenic deafness (F44.6)
- transient ischemic deafness (H93.01-)
Shared by both codes (1 note)
- noise-induced hearing loss (H83.3-)
H60-H95 — Diseases of the Ear and Mastoid Process (H60-H95)
No Excludes2, Code first, Use additional code, Code also, Includes and 7th character note at either code.
Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on. In a row that differs, each code’s own notes are listed under it, and the notes every code shares are listed once beneath them.
Derived from the official CMS ICD-10-CM tabular data (FY2027). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources