Is H50.121 a billable ICD-10-CM code?

Yes. H50.121 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does H50.121 sit in the tabular list?

Diseases of the eye and adnexa (H00-H59), in the block Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52).

What cannot be coded together with H50.121?

H50.121 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above H50.121 (H50.1) and apply to it just the same.

H50.121

H50.121 — Monocular exotropia with A pattern, right eye

Billable / specific codeICD-10-CMright

H50.121 is a billable, specific ICD-10-CM code for monocular exotropia with a pattern, right eye. It is valid for submission on a claim.

Excludes1 inherited from the categories above H50.121

These are not written on H50.121, but they bind it: a note on a category applies to every code beneath it. Billing H50.121 with anything listed here is a denial.

Written on H50.1 — Exotropia

intermittent exotropia (H50.33-, H50.34)

Risk adjustment

H50.121 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

H50.121 is named in 23 Medicare coverage policies — 23 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A54095Billing and Coding: Nerve Conduction Studies and Electromyography
A54969Billing and Coding: Nerve Conduction Studies and Electromyography
A56619Billing and Coding: Nerve Conduction Studies and Electromyography
A57123Billing and Coding: Nerve Conduction Studies and Electromyography

Code history

H50.121 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share H50.12. If H50.121 is not quite right, the correct code is usually one of these.

H50.122Monocular exotropia with A pattern, left eye

Questions about H50.121

Is H50.121 a billable ICD-10-CM code?: Yes. H50.121 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does H50.121 sit in the tabular list?: Diseases of the eye and adnexa (H00-H59), in the block Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52).
What cannot be coded together with H50.121?: H50.121 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above H50.121 (H50.1) and apply to it just the same.