2027 ICD-10-CM Diagnosis Code H51.0Palsy (spasm) of conjugate gaze
ICD-10-CM Codes›H00–H59›H49-H52›H51
- Billable — Valid for Submission
- Not Chronic
H51.0 is a billable ICD-10-CM diagnosis code for palsy (spasm) of conjugate gaze. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 124 through 125. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified eye disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acquired horizontal gaze palsy
- Alternating skew deviation
- Combined paralysis of upgaze and downgaze
- Congenital horizontal gaze palsy
- Dissociated gaze palsy
- Dysconjugate gaze
- Horizontal dissociated gaze palsy
- Horizontal gaze palsy
- Horizontal gaze palsy with progressive scoliosis
- Horizontal gaze preference
- Horizontal spasm of gaze
- Intermittent horizontal conjugate gaze deviation
- Intermittent upward gaze deviation
- Isolated acquired horizontal gaze palsy
- Isolated congenital horizontal gaze paresis
- Palsy of conjugate gaze
- Paralysis of downgaze
- Paralysis of upgaze
- Parinaud's syndrome
- Periodic alternating gaze deviation
- Pontine one and a half syndrome
- Skew deviation
- Spasm of conjugate gaze
- Supranuclear gaze palsy
- Supranuclear paralysis
- Sustained horizontal conjugate gaze deviation
- Sustained horizontal conjugate gaze deviation, contralateral type
- Sustained horizontal conjugate gaze deviation, ipsilateral type
- Sustained upward gaze deviation
- Upward gaze deviation
- Vertical gaze palsy
- Vertical one-and-a-half syndrome
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to H51.0: its own notes plus those printed at block H49-H52 and Chapter 7. A note printed at a category, block or chapter applies to every code under it.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- nystagmus and other irregular eye movements (H55)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury (trauma) of eye and orbit (S05.-)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
Notes
General instructions on how these codes are used.
- Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disorder (of) See Also: Disease;
Syndrome See Also: Disease;
Parinaud's H51.0
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Conjugate Gaze Palsy
a neurological disorder in which the eyes cannot move simultaneously in one direction.
Patient EducationClinical
Eye Movement Disorders
When you look at an object, you're using several muscles to move both eyes to focus on it. If you have a problem with the muscles, the eyes don't work properly.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert H51.0 to ICD-9-CMHistory
Code HistoryHistory
Questions About H51.0Overview
What is the ICD-10 code for palsy (spasm) of conjugate gaze?
The ICD-10-CM code for palsy (spasm) of conjugate gaze is H51.0 (sometimes written as H510). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is H51.0 (Other disorders of binocular movement) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report palsy (spasm) of conjugate gaze on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does H51.0 group to?
When palsy (spasm) of conjugate gaze is the principal diagnosis on an inpatient stay, it groups to MS-DRG 125, 124, with relative weights from 0.7699 to 1.2470 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of H51.0?
Under the General Equivalence Mappings, palsy (spasm) of conjugate gaze converts to ICD-9-CM 378.81 (palsy of conjugate gaze) and 378.82 (spasm of conjugate gaze). The mapping is approximate, so confirm the match fits the documentation.
