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H04.121

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🧬 ICD-10-CM H04.121 — Dry Eye Syndrome of Right Lacrimal Gland

Overview

ICD-10-CM H04.121 classifies dry eye syndrome (DES) of the right lacrimal gland, representing a multifactorial disease of the ocular surface characterized by a loss of homeostasis of the tear film. The underlying pathophysiology involves either decreased aqueous tear production by the lacrimal gland (aqueous-deficient dry eye, ADDE), increased tear film evaporation from meibomian gland dysfunction or environmental factors (evaporative dry eye, EDE), or a combination of both mechanisms. The result is tear film instability, hyperosmolarity, ocular surface inflammation, and epithelial damage — producing the hallmark symptoms of dryness, burning, foreign body sensation, fluctuating vision, and light sensitivity.

Accurate coding of H04.121 is essential for establishing medical necessity for diagnostic testing (tear osmolarity, Schirmer testing, meibography), prescription pharmacotherapy (cyclosporine, lifitegrast), procedural interventions (punctal occlusion, amniotic membrane application), and durable medical equipment (scleral lens fitting). The code is specific to the right lacrimal gland — when both eyes are affected, H04.123 (bilateral) is the appropriate code rather than reporting H04.121 and H04.122 together.

Code Breakdown

The structure of H04.121 follows the ICD-10-CM taxonomy:

SegmentValueDescription
CategoryH04Disorders of lacrimal system
SubcategoryH04.1Other disorders of lacrimal gland
SubgroupH04.12Dry eye syndrome
Laterality1Right lacrimal gland

Full H04.12x Laterality Subcodes

CodeDescription
H04.121Dry eye syndrome of right lacrimal gland ← YOU ARE HERE
H04.122Dry eye syndrome of left lacrimal gland
H04.123Dry eye syndrome of bilateral lacrimal glands
H04.129Dry eye syndrome of unspecified lacrimal gland

Use Bilateral Code — Do Not Dual-Code Both Eyes

When dry eye syndrome is documented bilaterally, assign H04.123 (bilateral). Do not report H04.121 and H04.122 together on the same claim for the same encounter. This is one of the most common dry eye coding errors in optometry and ophthalmology practices. Use H04.121 only when the documentation supports right-eye-only involvement or when the clinical context clearly distinguishes unilateral from bilateral disease.

Coding Guidelines

Includes

  • Keratoconjunctivitis sicca (KCS), right eye — the term is included under H04.12x
  • Aqueous-deficient dry eye syndrome, right eye
  • Evaporative dry eye syndrome, right eye (when documented as dry eye syndrome by the provider)
  • Tear film insufficiency, right eye
  • Dry eye associated with contact lens wear, right eye (when documented as dry eye syndrome)

Excludes1 — Mutually Exclusive; Cannot Code Together With H04.121

  • Congenital malformations of lacrimal system (Q10.4-Q10.6) — congenital lacrimal gland anomalies are coded from the congenital malformation chapter; cannot be reported alongside H04.121 for the same condition

Use of Additional Codes

H04.121 may be accompanied by additional codes to fully capture the clinical picture:

ScenarioAdditional CodeRationale
Sjögren syndrome with dry eyeM35.01 (Sjögren syndrome with keratoconjunctivitis)Code the systemic condition; M35.01 includes the ocular manifestation — query whether H04.121 is separately appropriate or if M35.01 fully captures the encounter
Rheumatoid arthritis with secondary dry eyeM06.9 or specific RA codeUnderlying systemic condition driving secondary DES
Bell’s palsy with lagophthalmos and dry eyeG51.0Neurogenic dry eye from incomplete lid closure; sequence based on reason for encounter
Graft vs. host disease with ocular involvementD89.810-D89.813Chronic GVHD is a significant cause of severe aqueous-deficient dry eye
Long-term use of ophthalmic cyclosporineZ79.899Long-term (current) use of other medication — flag when patient is on chronic Restasis/Cequa/Xiidra therapy
Contact lens wearerZ97.3Contact lens use documented as contributing factor or relevant to management
Vitamin A deficiency with eye manifestationsE50.0 or E50.1Nutritional dry eye; code underlying deficiency

Code Tree

Chapter 7: Diseases of the Eye and Adnexa (H00-H59)
└── Disorders of eyelid, lacrimal system and orbit (H00-H05)
    └── Disorders of lacrimal system (H04)
        └── Dry eye syndrome (H04.12)
            ├── H04.121 — Dry eye syndrome, right lacrimal gland  ← YOU ARE HERE
            ├── H04.122 — Dry eye syndrome, left lacrimal gland
            ├── H04.123 — Dry eye syndrome, bilateral lacrimal glands
            └── H04.129 — Dry eye syndrome, unspecified lacrimal gland

Risk Adjustment (HCC)

Hierarchical Condition Category (HCC) status determines impact on risk adjustment scores for Medicare Advantage and ACA plans.

  • HCC Status: No — H04.121 does not map to a CMS-HCC v28 category
  • RAF Impact: This code does not contribute to the Risk Adjustment Factor (RAF) score under the CMS-HCC v28 model
  • Clinical Relevance: While H04.121 itself carries no HCC weight, the underlying systemic conditions frequently driving dry eye — Sjögren syndrome (M35.01), rheumatoid arthritis (M06.9), diabetes mellitus (E11.40), and graft-vs-host disease (D89.813) — do carry significant HCC weight. Encounters for dry eye management are valuable opportunities to capture and document these underlying conditions, which should be coded on every applicable claim

Inpatient Impact (MS-DRG)

In the inpatient setting, H04.121 influences MS-DRG assignment.

  • CC/MCC Status: Non-CC — H04.121 does not carry CC or MCC weight under CMS MS-DRG v42
  • Impact: Dry eye syndrome virtually never drives an inpatient admission independently. In the inpatient setting, H04.121 will appear as a secondary diagnosis when a patient with known DES is admitted for another primary condition (eg, stroke, sepsis, post-surgical care). It does not shift DRG assignment
  • POA Indicator: When coded as a secondary inpatient diagnosis, POA = Y for a pre-existing dry eye diagnosis; document any new acute corneal complications of dry eye (eg, corneal ulceration from exposure) separately with their own POA indicator

Common CPT Pairings

Diagnostic and Evaluation Procedures

CPT CodeDescriptionWhen Used With H04.121
92014Ophthalmological services; medical examination and evaluation, comprehensive, established patientRoutine comprehensive eye exam for established dry eye patient; includes refraction, slit lamp, tear film assessment
92012Ophthalmological services; medical examination and evaluation, intermediate, established patientFollow-up/monitoring visit for stable dry eye; focused exam without comprehensive workup
92002Ophthalmological services; medical examination and evaluation, new patient, intermediateNew patient with dry eye complaint, intermediate complexity
92004Ophthalmological services; medical examination and evaluation, new patient, comprehensiveNew patient comprehensive evaluation including full dry eye workup
0330TTear film imaging, unilateral or bilateral, with interpretation and reportMeibography or tear film imaging when performed; Category III code — verify payer coverage before billing
92285External ocular photography with interpretation and reportAnterior segment photography for dry eye documentation; supports medical necessity review

Procedural Interventions

CPT CodeDescriptionWhen Used With H04.121
68761Closure of lacrimal punctum; by plug, eachPunctal plug insertion for aqueous-deficient dry eye; billed per plug — each punctum plugged = one unit; typically 1-4 units per session depending on how many puncta are treated
68760Closure of lacrimal punctum; by thermocauterization, ligation, or laser surgeryPermanent punctal occlusion when plugs are insufficient or not tolerated; billed per punctum
65778Placement of amniotic membrane on the ocular surface; without suturesAmniotic membrane application for severe dry eye with corneal compromise (eg, neurotrophic keratopathy, persistent epithelial defect secondary to DES)
65779Placement of amniotic membrane on the ocular surface; single layer, with suturesSutured amniotic membrane for more severe ocular surface compromise
99213-99215Office/outpatient E/M, established patientPhysician E/M service when management decisions (prescription changes, plug insertion decision, referral) constitute a separately identifiable service

Drug Codes — Prescription Topical Therapy

HCPCS CodeDrugWhen Used With H04.121
J7311Cyclosporine ophthalmic emulsion 0.05%, per 0.1 mL (Restasis)Anti-inflammatory for moderate-to-severe DES; prior authorization typically required
J7312Cyclosporine ophthalmic emulsion 0.09%, per 0.1 mL (Cequa)Higher-concentration cyclosporine formulation
J7313Lifitegrast ophthalmic solution 5%, per 0.2 mL (Xiidra)LFA-1 antagonist; anti-inflammatory for DES; prior auth typically required

Punctal Plug Billing — Per-Plug Unit Count

68761 is billed per punctum treated — each individual punctal plug insertion is one unit. A patient receiving bilateral lower punctal plugs at a single visit = 2 units of 68761. A patient receiving all four puncta plugged = 4 units. Documentation must identify each punctum treated (upper right, lower right, upper left, lower left) to support the unit count billed. Medicare requires documentation of a failed trial of artificial tears prior to authorizing punctal plug coverage.

Clinical Coding Examples

Example 1: New Patient — Moderate Dry Eye, Right Eye Only

Scenario: A 58-year-old female presents to ophthalmology as a new patient with complaints of right eye dryness, burning, and fluctuating vision for 6 months. Schirmer test demonstrates 4 mm wetting at 5 minutes (right eye), 14 mm (left eye). Tear break-up time: 3 seconds (right), 11 seconds (left). The physician diagnoses dry eye syndrome of the right lacrimal gland and initiates Restasis 0.05% for the right eye. Comprehensive exam performed.

Coding:

  • Primary: H04.121 — Dry eye syndrome of right lacrimal gland
  • CPT: 92004 — Ophthalmological examination, new patient, comprehensive
  • Drug: J7311 — Cyclosporine ophthalmic 0.05% per 0.1 mL, if administered in office or billed through Part B drug benefit
  • Note: If the physician performed additional testing such as tear film imaging, 0330T may be separately reported with verification of payer coverage.

Example 2: Established Patient — Punctal Plug Insertion, Both Lower Puncta, Right Eye Dominant Dry Eye

Scenario: An established 71-year-old male with right-eye-predominant dry eye syndrome returns after 6 weeks of artificial tear therapy with persistent symptoms. The physician inserts collagen punctal plugs into the lower puncta bilaterally. Documentation includes failed trial of artificial tears and Schirmer test results confirming aqueous deficiency bilaterally.

Coding:

  • Primary: H04.121 — Dry eye syndrome of right lacrimal gland (most symptomatic/primary eye)
  • Secondary: H04.122 — Dry eye syndrome of left lacrimal gland (bilateral treatment)
  • Note: In this context, both unilateral codes are appropriate because the clinical record distinguishes the two eyes with separate examination findings and supports bilateral treatment
  • CPT: 68761 × 2 — Closure of lacrimal punctum by plug; 2 units (right lower punctum and left lower punctum = 2 separate plugs)
  • Modifier -25 on the E/M if a separately identifiable evaluation and management service is performed at the same encounter

Example 3: Dry Eye Secondary to Sjögren Syndrome

Scenario: A 44-year-old female with established primary Sjögren syndrome presents to ophthalmology for management of severely symptomatic dry eye. Schirmer testing demonstrates less than 2 mm bilaterally. The visit is focused entirely on ocular management.

Coding:

  • Primary: H04.123 — Dry eye syndrome, bilateral lacrimal glands (both eyes symptomatic and treated)
  • Secondary: M35.01 — Sjögren syndrome with keratoconjunctivitis — code the underlying systemic disease as secondary; M35.01 already includes the KCS manifestation but H04.123 is additionally appropriate to capture the encounter’s diagnostic focus
  • Note: Sequence H04.123 as primary for this ophthalmology encounter since the reason for the visit is the ocular condition. The Sjögren syndrome (M35.01) follows as the etiologic condition.

Example 4: Ruling Out H04.121 — Symptom-Only Encounter

Scenario: A patient presents reporting right eye dryness. No objective testing is performed and no definitive diagnosis of dry eye syndrome is established. The physician documents “dry eye symptoms, right eye” and recommends OTC artificial tears.

Coding:

  • Do NOT use H04.121 when a confirmed diagnosis has not been established. When only symptoms are present and a definitive diagnosis is deferred, code the symptom: H57.11 (ocular pain, right eye) or H57.13 (eye discharge) as appropriate, pending workup. H04.121 requires a physician-established diagnosis of dry eye syndrome — not just patient-reported symptoms.

Revenue Cycle Considerations

  • wRVU: Not applicable — ICD-10-CM codes do not carry wRVUs; associated CPT procedure codes (68761, 92014, etc.) carry the wRVU value
  • Assistant Payable: Not applicable
  • Denial Risk: Moderate. The most common denial scenarios for dry eye encounters involve: (1) missing documentation of objective testing results to support the diagnosis; (2) punctal plug claims (68761) without documentation of a prior artificial tear trial; (3) prescription drug claims (J7311, J7312, J7313) without prior authorization or step therapy documentation; (4) bilateral E/M or procedure codes when unilateral codes are billed
  • Prior Authorization: Cyclosporine (Restasis, Cequa) and lifitegrast (Xiidra) routinely require prior authorization from commercial payers and Medicare Advantage plans. Authorization requests must include the H04.12x diagnosis code, objective testing results (Schirmer, TBUT, osmolarity), and documentation of failed OTC lubricant trial. Punctal plugs (68761) require documentation of failed conservative therapy for most payers
  • Bilateral Coding Note: When both eyes are affected and treated, use H04.123 (bilateral) as the primary diagnosis code rather than dual-coding H04.121 and H04.122 simultaneously — using the bilateral code is the correct approach per ICD-10-CM guidelines
  • H04.122: Dry eye syndrome of left lacrimal gland
  • H04.123: Dry eye syndrome of bilateral lacrimal glands
  • H04.129: Dry eye syndrome of unspecified lacrimal gland
  • M35.01: Sjögren syndrome with keratoconjunctivitis — when Sjögren is the etiology
  • H16.221: Keratoconjunctivitis sicca, not specified as Sjögren’s, right eye — note this is a distinct code from H04.121; use when the provider specifically documents KCS without lacrimal gland localization
  • H57.11-H57.13: Ocular pain/symptoms — use before diagnosis is confirmed
  • Z97.3: Contact lens status — relevant comorbidity
  • Z79.899: Long-term use of other medication — for patients on chronic cyclosporine or lifitegrast

Clinical Management Notes

Management of H04.121 is stepwise and evidence-based:

  • Step 1 — Lubricants: OTC artificial tears (preserved or preservative-free); warm compresses; lid hygiene; omega-3 supplementation; not separately billable — included in E/M
  • Step 2 — Prescription anti-inflammatory therapy: Cyclosporine (J7311, J7312) or lifitegrast (J7313); requires prior authorization; minimum 3-6 month trial to assess efficacy
  • Step 3 — Punctal occlusion: 68761 (plug insertion) or 68760 (thermocauterization) when lubricants and pharmacotherapy provide insufficient relief; document failed conservative therapy in the chart before billing
  • Step 4 — Advanced therapies: Amniotic membrane (65778, 65779) for severe corneal compromise; autologous serum tears (not standard CPT); scleral lens fitting (92071 for contact lens fitting for keratoconus/irregular cornea); intense pulsed light (IPL) therapy for meibomian gland dysfunction (0563T — verify payer coverage)
  • Monitoring: Schirmer testing, TBUT, corneal staining (fluorescein, rose bengal, lissamine green), osmolarity, and meibography imaging; document results with each visit to support ongoing medical necessity

ICD-10-CM Official Guidelines for Coding and Reporting FY2025 CMS ICD-10-CM Tabular List FY2025 CMS MS-DRG Grouper v42 (FY2025) CMS-HCC Risk Adjustment Model v28 (2024) AAPC ICD-10-CM Code Reference — H04.121 Review of Optometry — Dry Eye Syndrome Coding Issues Eyes on Eyecare — Dry Eye Coding and Billing Cheat Sheet (2024) Lacrivera — Billing Guide for Punctal Occlusion (2024) iCare Criteria #687.00 — Punctal Plug Coverage Criteria (2025) Aetna Clinical Policy Bulletin #0457 — Dry Eyes AMA CPT 2025 Professional Edition American Academy of Ophthalmology Preferred Practice Pattern: Dry Eye Syndrome (2023)

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