H90.A21 — Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side
Is H90.A21 billable?
Yes — H90.A21 is billable for FY2027. H90.A21 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. H90.A21 may be submitted for encounters from October 1, 2026 through September 30, 2027.
H90.A21 at a glance
| Code | H90.A21 |
|---|---|
| Description | Sensorineural hearing loss, unilateral, right ear, with restricted hearing on the contralateral side |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does H90.A21 group to?
H90.A21 sits in MDC 03 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 154Other Ear, Nose, Mouth and Throat Diagnoses with MCCmedical
- 155Other Ear, Nose, Mouth and Throat Diagnoses with CCmedical
- 156Other Ear, Nose, Mouth and Throat Diagnoses without CC/MCCmedical
How is H90.A21 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under H90.A2, the nearest indexed parent of H90.A21. Use them to find the family, then select the specific code.
- Loss › hearing › sensorineural NOS › unilateral › with › restricted hearing on the contralateral side (of)
Excludes1 — never code together — inherited from H90
The conditions below can never be reported together with H90.A21 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 8
The conditions below are not part of H90.A21, but a patient may have both at the same time. When documentation supports it, H90.A21 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)
How long has H90.A21 existed?
H90.A21 first appears in FY2018 (FY2017 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.