H50.042: Monocular esotropia with other noncomitancies, left eye
H50.042, monocular esotropia with other noncomitancies, left eye, is listed as a covered diagnosis in 13 Medicare billing and coding articles that apply to 6 HCPCS Level II codes, including J0585 (Injection, onabotulinumtoxina, 1 unit), J0588 (Injection, incobotulinumtoxin a, 1 unit), J0586 (Injection, abobotulinumtoxina, 5 units). The articles come from 7 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.
HCPCS Level II codes with H50.042 as a covered diagnosis
| Code | Description | Medicare coverage | DMEPOS fee 2026 (state range) | Articles listing it |
|---|---|---|---|---|
| J0585 | Injection, onabotulinumtoxina, 1 unit | Special coverage instructions apply | — | 8 |
| J0588 | Injection, incobotulinumtoxin a, 1 unit | Carrier judgment | — | 8 |
| J0586 | Injection, abobotulinumtoxina, 5 units | Carrier judgment | — | 8 |
| J0587 | Injection, rimabotulinumtoxinb, 100 units | Special coverage instructions apply | — | 8 |
| J0589 | Injection, daxibotulinumtoxina-lanm, 1 unit | Carrier judgment | — | 8 |
| G0255 | Current perception threshold/sensory nerve conduction test, (snct) per limb, any nerve | Non-covered by Medicare | Not covered | 5 |
Medicare policy articles listing H50.042
- A57715: Billing and Coding: Botulinum Toxins (First Coast Service Options, Inc. (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L33274, L38809
- A58423: Billing and Coding: Botulinum Toxins (Novitas Solutions, Inc. (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L33274, L38809
- A57185: Billing and Coding: Botulinum Toxin Injections (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L35170, L35172, L39832, L39836
- A57186: Billing and Coding: Botulinum Toxin Injections (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L35170, L35172, L39832, L39836
- A59707: Billing and Coding: Botulinum Toxin Injections (Wellpoint Federal (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L35170, L35172, L39832, L39836
- A59714: Billing and Coding: Botulinum Toxin Injections (Palmetto GBA (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L35170, L35172, L39832, L39836
- A59726: Billing and Coding: Botulinum Toxins Injections (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 5 Level II codes)
- A59809: Billing and Coding: Botulinum Toxin Injections (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L35170, L35172, L39832, L39836
- A57307: Billing and Coding: Nerve Conduction Studies and Electromyography (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A57478: Billing and Coding: Nerve Conduction Studies and Electromyography (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A54969: Billing and Coding: Nerve Conduction Studies and Electromyography (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A57668: Billing and Coding: Nerve Conduction Studies and Electromyography (Wellpoint Federal (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A56619: Billing and Coding: Nerve Conduction Studies and Electromyography (Palmetto GBA (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.
Other H50 diagnoses (Other strabismus)
- H50.041 — Monocular esotropia with other noncomitancies, right eye
- H50.00 — Unspecified esotropia
- H50.011 — Monocular esotropia, right eye
- H50.012 — Monocular esotropia, left eye
- H50.021 — Monocular esotropia with A pattern, right eye
- H50.022 — Monocular esotropia with A pattern, left eye
- H50.031 — Monocular esotropia with V pattern, right eye
- H50.032 — Monocular esotropia with V pattern, 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
- H50.10 — Unspecified exotropia
- H50.111 — Monocular exotropia, right eye
- H50.112 — Monocular exotropia, left eye
- H50.121 — Monocular exotropia with A pattern, right eye
- H50.122 — Monocular exotropia with A pattern, left eye
- H50.131 — Monocular exotropia with V pattern, right eye
- H50.132 — Monocular exotropia with V pattern, left eye
- 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
- H50.21 — Vertical strabismus, right eye
- H50.22 — Vertical strabismus, left eye
- H50.30 — Unspecified intermittent heterotropia
- H50.311 — Intermittent monocular esotropia, right eye
- H50.312 — Intermittent monocular esotropia, left eye
Frequently asked questions
Does Medicare cover H50.042 (Monocular esotropia with other noncomitancies, left eye)?
Medicare covers items and services, not diagnoses. 13 Medicare billing and coding articles list H50.042 as a covered diagnosis for 6 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.
Which HCPCS codes can be billed with ICD-10 H50.042?
The Level II codes from the policies most specific to this diagnosis are J0585 (Injection, onabotulinumtoxina, 1 unit, 8 articles); J0588 (Injection, incobotulinumtoxin a, 1 unit, 8 articles); J0586 (Injection, abobotulinumtoxina, 5 units, 8 articles); J0587 (Injection, rimabotulinumtoxinb, 100 units, 8 articles); J0589 (Injection, daxibotulinumtoxina-lanm, 1 unit, 8 articles). Code choice depends on the item supplied; check each code's descriptor.
Which Medicare policy articles list H50.042?
A57715 (Billing and Coding: Botulinum Toxins); A58423 (Billing and Coding: Botulinum Toxins); A57185 (Billing and Coding: Botulinum Toxin Injections), and 10 more articles.
What is ICD-10-CM code H50.042?
H50.042 is the ICD-10-CM code for monocular esotropia with other noncomitancies, left eye, in category H50 (Other strabismus), chapter 7: Diseases of the eye and adnexa.
Next steps
- Run a reimbursement report for a device billed under J0585
- Watch J0585 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for J0585
Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.
Chapter 7: Diseases of the eye and adnexa · All diagnoses · HCPCS lookup