H28 — Cataract in diseases classified elsewhere
Is H28 billable?
Yes — H28 is billable for FY2027. H28 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. H28 may be submitted for encounters from October 1, 2026 through September 30, 2027.
H28 at a glance
| Code | H28 |
|---|---|
| Description | Cataract in diseases classified elsewhere |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to H28?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name H28 directly.
This code describes a manifestation of an underlying disease. The underlying condition must be sequenced before it, so it can never be the principal or first-listed diagnosis.
Which MS-DRGs does H28 group to?
H28 sits in MDC 02 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 124Other Disorders of the Eye with MCC or Thrombolytic Agentmedical
- 125Other Disorders of the Eye without MCCmedical
How is H28 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to H28. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Cataract › malnutrition-dehydration (cortical) (immature) (incipient)
- Cataract › myotonic (cortical) (immature) (incipient)
- Cataract › myxedema (cortical) (immature) (incipient)
- Cataract › associated with › galactosemia (cortical) (immature) (incipient)
- Cataract › associated with › myotonic disorders (cortical) (immature) (incipient)
- Cataract › in › endocrine disease (cortical) (immature) (incipient)
- Cataract › in › hypoparathyroidism (cortical) (immature) (incipient)
- Cataract › in › malnutrition-dehydration (cortical) (immature) (incipient)
- Cataract › in › metabolic disease (cortical) (immature) (incipient)
- Cataract › in › myotonic disorders (cortical) (immature) (incipient)
- Cataract › in › nutritional disease (cortical) (immature) (incipient)
Excludes1 — never code together
The conditions below can never be reported together with H28 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Code first
The underlying condition below must be sequenced before H28. H28 describes a manifestation and cannot be the principal or first-listed diagnosis.
Excludes2 — not included here — inherited from Chapter 7
The conditions below are not part of H28, but a patient may have both at the same time. When documentation supports it, H28 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)
- diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury (trauma) of eye and orbit (S05.-)
- 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)
- syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
How long has H28 existed?
H28 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.