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H59.011

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H59.011 — Keratopathy (bullous aphakic) following cataract surgery, right eye

Code overview

H59.011 is an ICD-10-CM diagnosis code for keratopathy (bullous aphakic) following cataract surgery, right eye.
It resides in the H59 category for intraoperative and postprocedural complications/disorders of the eye and adnexa, not elsewhere classified.

This subcategory explicitly includes vitreous (touch) syndrome / vitreal corneal syndrome, which are classic post-cataract mechanisms for corneal decompensation.

Plain-language summary: this code is used when a patient has post-cataract surgery corneal edema with epithelial bullae (painful “blisters”) specifically described as aphakic bullous keratopathy affecting the right eye.

Clinical description (what it is)

Bullous keratopathy is corneal endothelial failure leading to chronic corneal edema; as the cornea swells, epithelial microcysts and bullae can form and rupture, causing foreign-body sensation and pain.

In the post-cataract context, the endothelial injury can be related to surgical trauma, inflammation, prolonged surgery, retained lens material, or vitreous prolapse contacting the corneal endothelium (vitreous touch syndrome).

Typical documented findings:

  • Corneal stromal edema (often central) with Descemet folds.

  • Epithelial bullae or microcysts; recurrent erosions.

  • Reduced best-corrected visual acuity, glare/halos.

  • Pain episodes when bullae rupture.

Documentation essentials (to support H59.011)

Use H59.011 when the note clearly supports all of the following:

  • Prior cataract surgery (history or operative report).

  • Corneal diagnosis stated as bullous aphakic keratopathy or equivalent post-cataract corneal decompensation terminology.

  • Right eye laterality documented.

Helpful add-ons (not required, but strengthens the record):

  • Aphakia status and whether an IOL is absent or has been explanted (clinical consistency).

  • Mechanism if known: vitreous touch, surgical complication, endothelial trauma, prolonged phaco time, etc.

  • Treatment plan (medical vs surgical) and severity (impact on vision/pain).

Code tree (where it sits)

H00-H59  Diseases of the Eye and Adnexa
  └─ H55-H59  Other disorders of eye and adnexa
      └─ H59  Intraoperative and postprocedural complications and disorders of eye and adnexa, NEC
          └─ H59.0  Keratopathy (bullous aphakic) following cataract surgery
              ├─ [[H59.011  ... right eye
              ├─ [[H59.012]]  ... left eye
              ├─ [[H59.013]]  ... bilateral
              └─ [[H59.019]]  ... unspecified eye

Includes / Excludes (high-yield)

Includes (H59.0)

  • Vitreous (touch) syndrome

  • Vitreal corneal syndrome

Excludes1 (do not report together with H59 codes when applicable)

Within the H59 category, ICD-10-CM lists Excludes1 items including:

  • Mechanical complication of intraocular lens (T85.2)

  • Mechanical complication of other ocular prosthetic devices/implants/grafts (T85.3)

  • Pseudophakia (Z96.1)

  • Secondary cataracts (H26.4-)

Note

Practical coding takeaway: H59.011 is aphakic bullous keratopathy following cataract surgery; if documentation instead centers on an IOL mechanical problem, use the relevant T85.2- code rather than H59.011, and don’t “double-report” pseudophakia with an aphakic condition.

HCC status

H59.011 does not map to CMS-HCC (no RAF impact) in typical risk-adjustment models.
Even though it can be clinically significant, it’s a postprocedural eye condition and is not an HCC driver; focus your HCC capture on the patient’s systemic comorbidities when documented and monitored/treated.

MS-DRG (if applicable)

If H59.011 is the principal diagnosis on an inpatient claim (uncommon, but possible in complex cases), it would generally fall under MDC 02 (Eye) and group to:

  • MS-DRG 124 (with MCC or thrombolytic agent), or

  • MS-DRG 125 (without MCC).cms+1

Note

In reality, many cases are outpatient (clinic/ASC) or short-stay; inpatient admission is more likely when paired with additional serious diagnoses, complex ocular surgery, or systemic instability.

CPTs you’ll commonly see with this diagnosis

H59.011 is a diagnosis—CPT depends on management. Typical pairings include:

Office/diagnostic work (symptom-driven)

  • Eye exam / E/M (ophthalmology or E/M family depending on setting and provider type).

  • Pachymetry, corneal topography, anterior segment imaging when medically necessary.

  • External photography if documenting severe bullae/epithelial defects.

Medical treatment (often no procedure CPT)

  • Hypertonic saline drops/ointment, lubrication, bandage contact lens, topical antibiotics if epithelial defect.

  • Pain control strategies and protective measures (often packaged into the visit rather than separately billable).

Surgical treatment (definitive)

  • Keratoplasty (corneal transplant) options are common when vision/pain is significant or persistent:

    • Endothelial keratoplasty (when appropriate).

    • Penetrating keratoplasty (full-thickness) especially in complex or advanced corneal disease.

  • In selected cases: anterior vitrectomy if vitreous touch syndrome is present and contributing.

wRVU + assistant payable (how to document for billing)

Because H59.011 is ICD-10-CM, wRVU and assistant surgeon payability are determined by the CPT, not the diagnosis.

General patterns you can rely on:

  • Clinic visits and testing: wRVUs are modest-to-moderate; assistant surgeon is never payable for E/M or diagnostic testing.

  • Corneal transplant procedures: typically higher wRVUs; assistant surgeon is often payable when the case meets payer rules and the procedure’s assistant indicator allows it (verify per CPT in the current MPFS).

  • Cataract surgery codes (if revision/related surgery is performed): assistant surgeon payment is payer- and procedure-indicator-dependent; confirm on a per-CPT basis.

Note

If you tell me the specific CPT(s) you’re pairing with H59.011 (e.g., a keratoplasty code you use most), I can format a tighter wRVU/assistant-payable mini-table around those exact procedures.

Coding examples

Example 1 — Straightforward post-cataract bullous keratopathy (right)

Documentation: “Hx cataract extraction OD. Persistent corneal edema with epithelial bullae. Dx: aphakic bullous keratopathy OD. Plan: Muro ointment QHS, hypertonic drops QID, BCL placed, follow-up cornea specialist.”

ICD-10-CM

  • H59.011 — Keratopathy (bullous aphakic) following cataract surgery, right eye

CPT (typical)

  • Established patient ophthalmology exam or E/M (based on setting)

  • Procedure code only if a separately billable procedure is performed (e.g., BCL management per payer policy)

Example 2 — Vitreous touch syndrome mechanism stated

Documentation: “Corneal decompensation post cataract surgery OD, vitreous touch syndrome with endothelial failure; painful recurrent bullae.”

ICD-10-CM

  • H59.011

CPT (typical)

  • Ophthalmology exam/E/M

  • If surgical correction planned/performed: anterior vitrectomy or keratoplasty CPT as appropriate (based on operative report)

Example 3 — Bilateral vs laterality mismatch

Documentation: “Bullous keratopathy following cataract surgery OU.”

Correct ICD-10-CM

  • H59.013 — … bilateral (instead of H59.011)

Coder note: do not force a unilateral code when the provider documents OU/bilateral.

Common pitfalls (what causes denials/audits)

  • Using H59.011 when the patient is pseudophakic with no aphakia: if the record clearly documents pseudophakia and no aphakia, ensure the provider’s diagnosis really is “aphakic bullous keratopathy” and not a different corneal diagnosis (or clarify).

  • Coding an IOL mechanical complication as H59.011: IOL mechanical issues belong in T85.2- rather than H59.011.​

  • Unspecified eye: avoid H59.019 when laterality is in the note; ophthalmology coding is laterality-sensitive.

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