H50.64 is the authoritative medical code for Lateral rectus muscle entrapment. This classification is used in medical billing and clinical recording to specify the clinical criteria for lateral rectus muscle entrapment (ICD-10-CM H50.64), 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
Lateral rectus muscle entrapment is a non-billable ICD-10-CM category code H50.64. A more specific billable subcode must be selected for claims submission. Excludes2 (not included here): nystagmus and other irregular eye movements H55.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for H50.64 in the official ICD-10-CM tabular list.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- nystagmus and other irregular eye movements H55
Frequently Asked Questions (FAQ) & Clinical Guidance
Can H50.64 be billed directly?
No. H50.64 (Lateral rectus muscle entrapment) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Can H50.64 be reported alongside related conditions?
Per Excludes2 instructions, H50.64 and the following may both be reported when both are present: nystagmus and other irregular eye movements (H55).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as H50.64, with their registry titles.
- H50 — Other strabismus
- H50.0 — Esotropia
- H50.00 — Unspecified esotropia
- H50.01 — Monocular esotropia
- H50.011 — Monocular esotropia, right eye
- H50.012 — Monocular esotropia, left eye
- H50.02 — Monocular esotropia with A pattern
- H50.021 — Monocular esotropia with A pattern, right eye
- H50.022 — Monocular esotropia with A pattern, left eye
- H50.03 — Monocular esotropia with V pattern
- H50.031 — Monocular esotropia with V pattern, right eye
- H50.032 — Monocular esotropia with V pattern, left eye
- H50.04 — Monocular esotropia with other noncomitancies
- H50.041 — Monocular esotropia with other noncomitancies, right eye
- H50.042 — Monocular esotropia with other noncomitancies, left eye
- H50.05 — Alternating esotropia
- H50.06 — Alternating esotropia with A pattern
- H50.07 — Alternating esotropia with V pattern
- H50.08 — Alternating esotropia with other noncomitancies
- H50.1 — Exotropia
- H50.10 — Unspecified exotropia
- H50.11 — Monocular exotropia
- H50.111 — Monocular exotropia, right eye
- H50.112 — Monocular exotropia, left eye
- H50.12 — Monocular exotropia with A pattern
- H50.121 — Monocular exotropia with A pattern, right eye
- H50.122 — Monocular exotropia with A pattern, left eye
- H50.13 — Monocular exotropia with V pattern
- H50.131 — Monocular exotropia with V pattern, right eye
- H50.132 — Monocular exotropia with V pattern, left eye
- H50.14 — Monocular exotropia with other noncomitancies
- H50.141 — Monocular exotropia with other noncomitancies, right eye
- H50.142 — Monocular exotropia with other noncomitancies, left eye
- H50.15 — Alternating exotropia
- H50.16 — Alternating exotropia with A pattern
- H50.17 — Alternating exotropia with V pattern
- H50.18 — Alternating exotropia with other noncomitancies
- H50.2 — Vertical strabismus
- H50.21 — Vertical strabismus, right eye
- H50.22 — Vertical strabismus, left eye
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: