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ICD-10/H40.1122

H40.1122 ICD-10-CM Code: Primary open-angle glaucoma, left eye, moderate stage

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

  • MS-DRG 124 — OTHER DISORDERS OF THE EYE WITH MCC OR THROMBOLYTIC AGENT (MDC 02)
  • MS-DRG 125 — OTHER DISORDERS OF THE EYE WITHOUT MCC (MDC 02)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Official Registry Overview & Definition

Primary open-angle glaucoma, left eye, moderate stage is a billable ICD-10-CM diagnosis code (H40.1122).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for H40.1122 in the official ICD-10-CM tabular list.

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Change history

  • FY2017 — 2016-10-01
    Added to the code set
    Primary open-angle glaucoma, left eye, moderate stage
    FY2017 changes

Verify Before Coding

  • No Medicare Code Editor or MS-DRG Definitions Manual restrictions apply to this code.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Contextual Map

Every relationship of H40.1122 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • H00-H59 — Chapter 7: Diseases of the Eye and Adnexa (H00-H59) (H00-H59) [Hierarchy]
  • H40-H42 — Glaucoma [Hierarchy]

Referenced by Excludes2 notes

  • H25 — Age-related cataract [Excludes2](via H40.1.-): “capsular glaucoma with pseudoexfoliation of lens (H40.1-)” · check together

Referenced by Code First instructions

  • H26.23 — Glaucomatous flecks (subcapsular) [Code First](via H40.-): “underlying glaucoma (H40-H42)” · check together

Referenced by Use Additional Code instructions

  • E08.39 — Diabetes mellitus due to underlying condition with other diabetic ophthalmic complication [Use Additional Code](via H40.-): “diabetic glaucoma (H40-H42)” · check together
  • E09.39 — Drug or chemical induced diabetes mellitus with other diabetic ophthalmic complication [Use Additional Code](via H40.-): “diabetic glaucoma (H40-H42)” · check together
  • E10.39 — Type 1 diabetes mellitus with other diabetic ophthalmic complication [Use Additional Code](via H40.-): “diabetic glaucoma (H40-H42)” · check together
  • E11.39 — Type 2 diabetes mellitus with other diabetic ophthalmic complication [Use Additional Code](via H40.-): “diabetic glaucoma (H40-H42)” · check together
  • E13.39 — Other specified diabetes mellitus with other diabetic ophthalmic complication [Use Additional Code](via H40.-): “diabetic glaucoma (H40-H42)” · check together

Clinical classification (CCSR)

Potential MS-DRG

  • DRG 124 — OTHER DISORDERS OF THE EYE WITH MCC OR THROMBOLYTIC AGENT [MS-DRG]: “OTHER DISORDERS OF THE EYE WITH MCC OR THROMBOLYTIC AGENT (MDC 02)”
  • DRG 125 — OTHER DISORDERS OF THE EYE WITHOUT MCC [MS-DRG]: “OTHER DISORDERS OF THE EYE WITHOUT MCC (MDC 02)”

MDC crossing · procedures (1200)

  • MDC 02 — Diseases and Disorders of the Eye [MDC crossing]: “Diseases and Disorders of the Eye — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
  • 039S0ZX — Drainage of Right Temporal Artery, Open Approach, Diagnostic [Same-MDC procedure]: “Drainage of Right Temporal Artery, Open Approach, Diagnostic — grouped in MDC 02, the procedure side of this code's crossing.” · check together
  • 039S4ZX — Drainage of Right Temporal Artery, Percutaneous Endoscopic Approach, Diagnostic [Same-MDC procedure]: “Drainage of Right Temporal Artery, Percutaneous Endoscopic Approach, Diagnostic — grouped in MDC 02, the procedure side of this code's crossing.” · check together
  • 039T0ZX — Drainage of Left Temporal Artery, Open Approach, Diagnostic [Same-MDC procedure]: “Drainage of Left Temporal Artery, Open Approach, Diagnostic — grouped in MDC 02, the procedure side of this code's crossing.” · check together
  • 039T4ZX — Drainage of Left Temporal Artery, Percutaneous Endoscopic Approach, Diagnostic [Same-MDC procedure]: “Drainage of Left Temporal Artery, Percutaneous Endoscopic Approach, Diagnostic — grouped in MDC 02, the procedure side of this code's crossing.” · check together
  • 03BS0ZX — Excision of Right Temporal Artery, Open Approach, Diagnostic [Same-MDC procedure]: “Excision of Right Temporal Artery, Open Approach, Diagnostic — grouped in MDC 02, the procedure side of this code's crossing.” · check together
  • and 1195 more

Nearest codes (40)

  • H40 — Glaucoma [Sibling]
  • H40.062 — Primary angle closure without glaucoma damage, left eye [Sibling]
  • H40.063 — Primary angle closure without glaucoma damage, bilateral [Sibling]
  • H40.069 — Primary angle closure without glaucoma damage, unspecified eye [Sibling]
  • H40.1 — Open-angle glaucoma [Sibling]
  • H40.10 — Unspecified open-angle glaucoma [Sibling]
  • H40.10X0 — Unspecified open-angle glaucoma, stage unspecified [Sibling]
  • H40.10X1 — Unspecified open-angle glaucoma, mild stage [Sibling]
  • and 32 more

Change history

  • FY2017 — Added to the code set [Change history]

Referenced by Other Codes

Clinical classification (AHRQ CCSR):EYE003 — Glaucoma (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Potential MS-DRG Relationships (FY2026)

Not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity.

Named in the grouper logic of 2 MS-DRGs: DRG 124 (MDC 02), DRG 125 (MDC 02).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Official ICD-10-CM tabular notes on other codes that name H40.1122 or its code family.

1 Excludes2 notes: H25 (via H40.1.-).

1 Code First instructions: H26.23 (via H40.-).

5 Use Additional Code instructions: E08.39 (via H40.-), E09.39 (via H40.-), E10.39 (via H40.-), E11.39 (via H40.-), E13.39 (via H40.-).

Frequently Asked Questions (FAQ) & Clinical Guidance

Does H40.1122 require a 7th character?

Yes. One of the following 7th characters is to be assigned to each code in subcategory H40.11 to designate the stage of glaucoma.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to H40.1122 in its code family, with their registry titles.

  • H40.1113 — Primary open-angle glaucoma, right eye, severe stage
  • H40.1114 — Primary open-angle glaucoma, right eye, indeterminate stage
  • H40.112 — Primary open-angle glaucoma, left eye
  • H40.1120 — Primary open-angle glaucoma, left eye, stage unspecified
  • H40.1121 — Primary open-angle glaucoma, left eye, mild stage
  • H40.1123 — Primary open-angle glaucoma, left eye, severe stage
  • H40.1124 — Primary open-angle glaucoma, left eye, indeterminate stage
  • H40.113 — Primary open-angle glaucoma, bilateral
  • H40.1130 — Primary open-angle glaucoma, bilateral, stage unspecified
  • H40.1131 — Primary open-angle glaucoma, bilateral, mild stage

View all codes in the H40 family