DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

H28 diagnosis code · Billable category · FY2027

H28 Cataract in diseases classified elsewhere

  • Billable
  • Not CC/MCC
  • POA reported

H28 ICD-10 code: a billable diagnosis code in FY2027; the category has no subdivisions.

Where it sits

  1. Chapter 7 Diseases of the eye and adnexa (H00-H59)
  2. H25-H28 Disorders of lens (H25-H28)
  3. H28 Cataract in diseases classified elsewhere
CC / MCC
Neither
MS-DRG
124-125
HCC V28
–
POA
Reported
Code Editor
Manifestation
Index entries
11

Instructions

At H28

Excludes1

Code first

  • underlying disease, such as:
  • hypoparathyroidism (E20.-) E20
  • myotonia (G71.1-) G71.1
  • myxedema (E03.-) E03
  • protein-calorie malnutrition (E40-E46) E40 E46

Notes that also apply

Chapter 7 instructions (Notes 1, Excludes2 11): printed on the chapter 7 page.

Index entries

  • Cataract (cortical) (immature) (incipient)myxedema → E03.9 [H28]
  • Cataract (cortical) (immature) (incipient)malnutrition-dehydration → E46 [H28]
  • Cataract (cortical) (immature) (incipient)myotonic → G71.19 [H28]
  • Cataract (cortical) (immature) (incipient)in (due to)hypoparathyroidism → E20.9 [H28]
  • Cataract (cortical) (immature) (incipient)in (due to)endocrine disease → E34.9 [H28]
  • Cataract (cortical) (immature) (incipient)in (due to)malnutrition-dehydration → E46 [H28]
  • Cataract (cortical) (immature) (incipient)in (due to)nutritional disease → E63.9 [H28]
  • Cataract (cortical) (immature) (incipient)associated withgalactosemia → E74.21 [H28]
  • Cataract (cortical) (immature) (incipient)in (due to)metabolic disease → E88.9 [H28]
  • Cataract (cortical) (immature) (incipient)associated withmyotonic disorders → G71.19 [H28]
  • Cataract (cortical) (immature) (incipient)in (due to)myotonic disorders → G71.19 [H28]

NCHS Alphabetic Index. Index first, then the Tabular List.

Medicare grouping and edits

CMS files for H28
CC / MCCNeither
Appendix BMDC 02 Diseases and Disorders of the Eye, MS-DRG 124-125 (Other Disorders of the Eye with MCC or Thrombolytic Agent…)
Code EditorManifestation code: not allowed as principal diagnosis
POAReported
HCC V28–

CMS: MS-DRG v44 (Appendix B, C), MCE v44, POA list FY2027, 2027 Initial ICD-10-CM Mappings. What the rows mean.

Hierarchy