Crystal's MCW Coder HubH43.812
Short Definition
Vitreous degeneration of the left eye, encompassing degenerative changes of the vitreous body including syneresis (liquefaction), shrinkage, and posterior vitreous detachment (PVD) — the separation of the posterior vitreous cortex from the inner surface of the retina.
Long Clinical Definition
H43.812 describes vitreous degeneration of the left eye, a broad category that captures the spectrum of age-related and pathologic degenerative changes within the vitreous body of the left eye. The most clinically significant and common form is posterior vitreous detachment (PVD) — the separation of the posterior hyaloid membrane (posterior vitreous face) from the inner limiting membrane of the retina.
The vitreous humor is a transparent, gel-like structure composed predominantly of water, type II collagen fibrils, and hyaluronic acid. It maintains its gel consistency and attachment to the retina throughout youth. With advancing age, decreased levels of hyaluronic acid cause the collagen fibrils to aggregate and the gel to liquefy (syneresis), creating fluid-filled pockets (lacunae) within the vitreous body. As liquefaction progresses, the vitreous mass shrinks and the posterior vitreous face ultimately separates from the retinal surface — the event known as posterior vitreous detachment.
PVD is an extremely common, usually benign age-related process. However, it can carry significant risk at the moment of separation, particularly when vitreoretinal adhesions are present — traction from the separating vitreous can create retinal tears, which, if undetected, may progress to rhegmatogenous retinal detachment — a vision-threatening emergency.
Anatomic and Clinical Context
Location: Left eye, vitreous body and vitreoretinal interface (posterior segment).
Vitreous attachment zones (strongest to weakest):
- Vitreous base (most anterior — strongest attachment, rarely torn by PVD).
- Optic nerve margin.
- Foveal region.
- Retinal vessels.
- General posterior pole (weakest — first to separate in PVD).
Stages of vitreous degeneration leading to PVD:
- Syneresis — liquefaction of vitreous gel, formation of fluid lacunae.
- Partial PVD — focal separation of posterior vitreous face, may have traction at remaining adhesion points.
- Complete PVD — full separation of posterior hyaloid from retina; vitreous collapses anteriorly; Weiss ring visible on exam.
PVD Classification (clinical relevance):
| Type | Description | Risk |
|---|---|---|
| Uncomplicated PVD | Complete, clean separation from retina | Low risk; observation |
| Complicated PVD | Incomplete separation with traction at ora, macula, or vessels | Elevated risk of retinal tear, VMT, macular hole |
| PVD with retinal tear | Traction torn retinal tissue during separation | High risk — requires urgent treatment |
| PVD with vitreous hemorrhage | Traction torn retinal vessel during separation | Must rule out retinal tear |
Common risk factors:
- Advancing age (most significant).
- High myopia (axial elongation weakens vitreoretinal adhesion; accelerates degeneration).
- Prior ocular surgery (especially cataract surgery, which is strongly associated with accelerated PVD).
- Ocular trauma.
- Inflammatory ocular disease (uveitis, intermediate uveitis).
- Systemic conditions — diabetes, connective tissue disorders (Marfan syndrome, Stickler syndrome).
Symptoms:
- Floaters — particularly new onset, sudden increase in number or size.
- Weiss ring floater — large, circular, distinctive.
- Photopsias (flashes of light) — especially temporal, brief, induced by eye movement — from vitreoretinal traction.
- Cobweb-like shadows.
- Rarely, significant visual field loss if retinal detachment has developed.
Clinical examination findings:
- Liquefied vitreous visible on slit-lamp with retroillumination.
- Weiss ring (optic disc attachment ring detached, floating in anterior vitreous).
- Posterior hyaloid separation visible on indirect ophthalmoscopy.
- Peripheral retinal examination critical — look for breaks, tears, lattice degeneration.
- OCT posterior segment useful for incomplete PVD, VMT, macular status.
Official Code Structure and Tree
ICD-10-CM Code Tree
- H00-H59 Diseases of the eye and adnexa
- H43-H44 Disorders of vitreous body and globe
- H43 Disorders of vitreous body
- H43.0 Vitreous prolapse
- H43.1 Vitreous hemorrhage
- H43.11 Vitreous hemorrhage, right eye
- H43.12 Vitreous hemorrhage, left eye
- H43.13 Vitreous hemorrhage, bilateral
- H43.2 Crystalline deposits in vitreous body
- H43.3 Other vitreous opacities (floaters)
- H43.8 Other disorders of vitreous body
- H43.81 Vitreous degeneration
- H43.82 Vitreomacular adhesion
- H43.89 Other vitreous disorders
- H43.9 Unspecified disorder of vitreous body
- H43 Disorders of vitreous body
- H43-H44 Disorders of vitreous body and globe
H43.812 is a billable, lateralized, specific ICD-10-CM code.
Includes / Excludes / Code Also
Includes (at H43.812 level)
- Posterior vitreous detachment (PVD), left eye.
- Vitreous syneresis (liquefaction), left eye.
- Vitreous shrinkage and collapse, left eye.
- Incomplete posterior vitreous detachment, left eye.
- Age-related vitreous degeneration, left eye.
Excludes1 (at H43.8 level — cannot be coded with H43.812 when these conditions are present)
- Proliferative vitreoretinopathy with retinal detachment — H33.4x (if PVR with RD is documented, use H33.4x, not H43.812).
Excludes2 (at H43 level — separate conditions, can be coded together if both present)
- Vitreous abscess — H44.02x (infectious; a fundamentally different pathological process).
Code Also / Use Additional Code
The following conditions are commonly associated with H43.812 and should be coded additionally when documented:
- Other vitreous opacities (floaters), left eye — H43.392 (PVD and floaters frequently coexist; code both when present and symptomatic).
- Vitreomacular adhesion, left eye — H43.822 (when OCT documents persistent vitreomacular adhesion as a distinct finding in the setting of incomplete PVD).
- Retinal break/tear without detachment, left eye — H33.312 or H33.321 (if tear found on PVD workup; becomes primary treatment driver).
- Retinal detachment, left eye — H33.002 or appropriate H33.x code (if detachment found; becomes primary diagnosis).
- Macular hole, left eye — H35.322 (full-thickness macular hole) or H35.342 (partial thickness), if VMT has resulted in macular hole formation.
- Vitreous hemorrhage, left eye — H43.12 (if traction has torn a retinal vessel causing hemorrhage accompanying PVD).
- High myopia, left eye — H52.12 (if myopia is a contributing factor, document and code).
HCC / Risk Adjustment
- HCC status: H43.812 does not map to a CMS-HCC in standard Medicare Advantage risk models.
- Indirect consideration: Associated conditions that frequently accompany advanced vitreous degeneration may carry HCC weight:
- Proliferative diabetic retinopathy (E11.3xx) — HCC mapped.
- Retinal detachment with significant vision loss — may affect functional status coding.
- Macular degeneration with subfoveal involvement — may carry quality metrics relevance.
- Code all documented associated conditions for full clinical documentation integrity.
MS-DRG Considerations
- H43.812 is an outpatient/office-based diagnosis in virtually all clinical scenarios.
- Inpatient admission with vitreous degeneration/PVD as the primary diagnosis would be rare and atypical.
- If surgery for a PVD complication (macular hole, retinal detachment, VMT) requires hospital admission:
- MDC 02 - Diseases and Disorders of the Eye applies.
- DRG assignment depends on the procedure performed and associated diagnoses.
- H43.812 would typically serve as a secondary or contributing diagnosis rather than the DRG-determining principal diagnosis.
- Ambulatory surgery center (ASC) or outpatient hospital is the standard setting for all vitreous procedures associated with H43.812.
Relationship to CPT, wRVUs, and Assistant at Surgery
wRVUs
ICD-10-CM codes carry no wRVUs. For H43.812, wRVUs are generated by associated CPT codes:
Ophthalmological Exam Codes
| CPT | Description |
|---|---|
| 92004 | New patient, comprehensive ophthalmological exam |
| 92012 | Established patient, intermediate ophthalmological exam |
| 92014 | Established patient, comprehensive ophthalmological exam |
Diagnostic Imaging
| CPT | Description | Notes |
|---|---|---|
| 92134 | OCT retina | PVD staging, macular status, VMT, ERM detection |
| 92133 | OCT optic nerve | When optic nerve status is also being evaluated |
| 92250 | Fundus photography | Bilateral documentation of vitreous and retinal status |
| 76512 | B-scan ultrasound | Media opacity limits fundus view |
Procedural Codes
| CPT | Description | Notes |
|---|---|---|
| 67031 | YAG laser vitreolysis | For symptomatic vitreous strands/opacities from PVD; coverage varies by payer |
| 67036 | Vitrectomy, pars plana, basic | For visually significant vitreous degeneration/opacities not managed conservatively |
| 67041 | PPV with preretinal cellular membrane removal | For concurrent ERM/macular pucker related to PVD |
| 67042 | PPV with ILM removal | For macular hole repair — common PVD/VMT complication |
| 67039 | PPV with focal endolaser | With concurrent retinal pathology requiring focal laser |
| 67040 | PPV with panretinal endolaser | With concurrent proliferative retinopathy |
| 67145 | Prophylaxis of retinal detachment, laser/cryo | For retinal tear found during PVD workup |
Reference the current year MPFS for specific wRVU values.
Assistant at Surgery
- 67031 (YAG laser vitreolysis): Single-surgeon minor laser procedure; assistant not applicable.
- 67036 (basic PPV): Check MPFS indicator — basic vitrectomy may or may not allow assistant depending on complexity documentation.
- 67041/67042 (PPV with membrane peel/ILM removal): More complex procedures; check MPFS assistant-at-surgery indicator. When documented complexity supports it, modifier 80 or 82 may apply.
- 67145 (retinopexy): Typically single-surgeon; assistant not standard.
- Always verify the exact CPT code’s MPFS assistant-at-surgery indicator before billing.
Critical Coding Distinctions
| Code | Description | Use When |
|---|---|---|
| H43.812 | Vitreous degeneration, left eye | PVD, vitreous syneresis, shrinkage, degeneration — left eye |
| H43.392 | Other vitreous opacities, left eye | Floaters/opacities — code together with H43.812 when both present |
| H43.822 | Vitreomacular adhesion, left eye | Incomplete PVD with documented VMT/VMA on OCT |
| H43.12 | Vitreous hemorrhage, left eye | Predominantly hemorrhagic vitreous opacity; blood in vitreous |
| H33.312 | Horseshoe tear of retina without detachment, left eye | Retinal tear found during PVD workup — primary treatment driver |
| H33.002 | Retinal detachment with retinal break, left eye | Retinal detachment complicating PVD |
| H35.322 | Full-thickness macular hole, left eye | Macular hole complicating PVD/VMT |
| H33.40x | Traction detachment of retina, PVR | Proliferative vitreoretinopathy with RD — Excludes1 at H43.8 level |
Coding Examples
Example 1 — New Symptomatic PVD, Left Eye, No Complications
Scenario 63-year-old new patient presents with sudden onset floaters and photopsias, left eye, over 3 days. Dilated fundus exam reveals complete posterior vitreous detachment with Weiss ring, left eye. No retinal tears. No retinal detachment. Macular OCT normal. Counseled on return precautions and scheduled 4-6 week follow-up.
ICD-10-CM
- H43.812 - Vitreous degeneration, left eye (PVD).
- H43.392 - Other vitreous opacities, left eye (symptomatic floaters).
CPT
- 92004 - Ophthalmological services, new patient, comprehensive.
- 92134 - OCT retina, posterior segment (to assess macular status and confirm no VMT).
- 92250 - Fundus photography (to document vitreous and retinal status).
Example 2 — PVD with Retinal Tear Found, Left Eye
Scenario 57-year-old established patient presents urgently with new floaters and flashes, left eye. Dilated exam reveals PVD with horseshoe retinal tear, superior temporal, left eye. Laser retinopexy performed at the same visit.
ICD-10-CM
- H33.312 - Horseshoe tear of retina without detachment, left eye (primary — drives treatment decision).
- H43.812 - Vitreous degeneration, left eye (PVD as the precipitating event).
- H43.392 - Other vitreous opacities, left eye (symptomatic floaters).
CPT
- 92014 - Ophthalmological services, established patient, comprehensive.
- 67145 - Prophylaxis of retinal detachment, laser (retinopexy around the retinal tear).
- Modifier 25 on 92014 if payer requires separate identification of E/M from same-day procedure.
Example 3 — Incomplete PVD with Vitreomacular Traction, Left Eye
Scenario 71-year-old with decreased visual acuity left eye. OCT shows incomplete PVD with vitreomacular traction and early full-thickness macular hole forming, left eye. Referred for surgical planning — vitrectomy with ILM peel.
ICD-10-CM
- H35.322 - Full-thickness macular hole, left eye (primary — most significant finding driving surgical decision).
- H43.822 - Vitreomacular adhesion, left eye (VMT documented on OCT as etiology).
- H43.812 - Vitreous degeneration, left eye (incomplete PVD as underlying pathological process).
CPT (consultation visit)
- 92014 - Ophthalmological services, established patient, comprehensive.
- 92134 - OCT retina.
CPT (surgical case)
- 67042 - Vitrectomy, mechanical, pars plana approach, with removal of internal limiting membrane (macular hole repair).
- Verify MPFS assistant-at-surgery indicator for 67042 if assistant is present.
Example 4 — Bilateral PVD (Asymmetric Presentation)
Scenario 68-year-old with known right PVD, now developing new left eye PVD symptoms. Bilateral exam performed. Right PVD old, stable. Left PVD new, complete, no tears.
ICD-10-CM
- H43.812 - Vitreous degeneration, left eye (new/active PVD left).
- H43.811 - Vitreous degeneration, right eye (established stable PVD right).
- H43.392 - Other vitreous opacities, left eye (new floaters, left).
CPT
- 92014 - Ophthalmological services, established patient, comprehensive.
- 92134 - OCT retina (bilateral assessment).
Key Coding Pearls
- PVD = H43.81x in ICD-10-CM. This is the correct code for posterior vitreous detachment — not a symptom code, not an unspecified vitreous code.
- Code H43.812 and H43.392 together when PVD is accompanied by symptomatic floaters — they are separate sub-categories and are not mutually exclusive.
- Incomplete PVD with VMT — add H43.822 (vitreomacular adhesion, left eye) when OCT documents persistent vitreomacular traction as a clinically significant separate finding.
- Retinal tear found during PVD evaluation — H33.312 or appropriate tear code becomes the primary diagnosis; H43.812 is secondary.
- Macular hole from VMT — H35.322 becomes primary; H43.812 and H43.822 are secondary context codes.
- Proliferative VR with retinal detachment is an Excludes1 — do not combine H43.812 with H33.4x codes.
- Laterality is required — do not use H43.819 (unspecified) when the affected eye is clearly documented.
- Bilateral PVD can be coded with H43.813 (bilateral) when both eyes are affected simultaneously, or H43.811 + H43.812 when both are documented but presenting at different stages or timeframes.
Procedures if Applicable:
- code “67031” description Severing of vitreous strands, vitreous face adhesions, sheets, membranes or opacities, laser surgery — YAG laser vitreolysis
- code “67036” description Vitrectomy, mechanical, pars plana approach
- code “67041” description Vitrectomy with removal of preretinal cellular membrane (epiretinal membrane/macular pucker) — when ERM co-exists
- code “67042” description Vitrectomy with removal of internal limiting membrane — for macular hole repair, which can follow PVD-related traction
- code “67043” description Vitrectomy with removal of subretinal membrane (CNV) — when subretinal pathology co-exists
- code “67039” description Vitrectomy with focal endolaser photocoagulation
- code: “67040” description Vitrectomy with endolaser panretinal photocoagulation
- code “67145 description Prophylaxis of retinal detachment, laser or cryo — if retinal tear found in association with PVD
Suggested Obsidian Linkouts
- H43.392 - Other vitreous opacities, left eye
- H20.051 - Hypopyon, right eye
- Uveitis and Iridocyclitis - Clinical Overview
- Ophthalmology CPT Codes Reference
- Global Surgical Package MOC
- -22 - Modifier 22 for complex vitrectomy cases
- -25 - Modifier 25 for same-day E/M and procedure