H44.42 is the authoritative medical code for Hypotony of eye due to ocular fistula. This classification is used in medical billing and clinical recording to specify the clinical criteria for hypotony of eye due to ocular fistula (ICD-10-CM H44.42), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Hypotony of eye due to ocular fistula is a non-billable ICD-10-CM category code H44.42. A more specific billable subcode must be selected for claims submission. Includes: disorders affecting multiple structures of eye.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for H44.42 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- disorders affecting multiple structures of eye
Frequently Asked Questions (FAQ) & Clinical Guidance
Can H44.42 be billed directly?
No. H44.42 (Hypotony of eye due to ocular fistula) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to H44.42 in its code family, with their registry titles.
- H44 — Disorders of globe
- H44.0 — Purulent endophthalmitis
- H44.00 — Unspecified purulent endophthalmitis
- H44.001 — Unspecified purulent endophthalmitis, right eye
- H44.002 — Unspecified purulent endophthalmitis, left eye
- H44.003 — Unspecified purulent endophthalmitis, bilateral
- H44.009 — Unspecified purulent endophthalmitis, unspecified eye
- H44.01 — Panophthalmitis (acute)
- H44.011 — Panophthalmitis (acute), right eye
- H44.012 — Panophthalmitis (acute), left eye
View all 40 codes in the H44 family