Crystal's MCW Coder HubDEFINITION of Iridocyclitis
Iridocyclitis is inflammation affecting both the iris and ciliary body, classified as anterior uveitis. Iridocyclitis, the most common form of anterior uveitis, involves acute or chronic inflammation of the anterior uvea (iris + ciliary body), leading to anterior chamber cells/flare, keratic precipitates, synechiae (posterior/anterior), and potential complications like glaucoma, cataracts, or macular edema; often idiopathic (50%), but linked to HLA-B27, infections (HSV, TB), or systemic diseases (JIA, ankylosing spondylitis, sarcoid).
ETYMOLOGY of Iridocyclitis
DERIVATIONS of Iridocyclitis
TABLE definition AS Definition FROM #medterm WHERE length(filter(roots, (word) => econtains([[]].roots, word))) > 0 AND file.name != [[]].file.name SORT file.name ASC
Query functionality
TABLE definition AS Definition FROM #medterm WHERE length(filter(definition, (word) => econtains([[]].definition, word))) > 0 AND file.name != [[]].file.name
Coding Context
ICD-10-CM:
| Code | Description |
|---|---|
| H20.9 | Unspecified iridocyclitis. |
| H20.0 | Primary iridocyclitis (acute). |
| H20.1 | Chronic iridocyclitis. |
| H20.2 | Secondary iridocyclitis (post-op/infectious). |
Associated: M08.2 (JIA), M45.9 (ankylosing spondylitis), B00.81 (HSV).[11]
Clinical Features
Symptoms:[1][3][4]
- Unilateral > bilateral eye pain.
- Ciliary flush (perilimbal injection).
- photophobia, blurred vision.
- Miosis (reactive spasm).
Slit-lamp signs:
- AC cells/flare (SUN grading).
- KP (keratic precipitates, fine granulomatous vs. large non-granulomatous).
- Posterior synechiae (iris-lens adhesions).
- Hypopyon (pus layer, severe).
Types: Acute (iritis), chronic (JIA), granulomatous (TB), non-granulomatous (HLA-B27).
Related Terms
- Iritis: Iris-only (subset).
- Uveitis: General uveal inflammation (anterior/intermediate/posterior/pan).
- Keratic Precipitates (KP): Inflammatory cells on cornea.
- Synechiae: Adhesions (posterior: pupil; anterior: iris angle).
- SUN Criteria: Standardization of Uveitis Nomenclature (cell/flare grading).
Causes: Idiopathic (50%), HLA-B27 (25%), JIA (children), infections, sarcoid, IBD.
Management and Complications
Treatment:
- Cycloplegics: Atropine/cyclopentolate (dilate, break synechiae, relieve spasm).
- Steroids: Prednisolone acetate 1% qid (taper).
- Periocular/systemic: For non-responders.
- Treat systemic: Methotrexate (JIA), biologics (TNF-i).
Complications: Glaucoma (angle closure), cataract, band keratopathy, macular edema, vision loss.
Prognosis: Excellent acute; chronic risks scarring (monitor IOP, OCT).[1]
One-Sentence Summary
Iridocyclitis (H20.9, Greek iris- kuklos -itis), anterior uveitis inflaming iris/ciliary body, presents with pain/photophobia/AC cells (SUN graded), managed via steroids/cycloplegics; idiopathic or HLA-B27/JIA-associated with synechiae/glaucoma risks.
Med roots Appendix A Prefixes Appendix B Combining Forms Appendix C Suffixes Appendix D Suffix forms