2027 ICD-10-CM Diagnosis Code H47.312Coloboma of optic disc, left eye
ICD-10-CM Codes›H00–H59›H46-H47›H47
- Billable — Valid for Submission
- Chronic Condition
H47.312 is a billable ICD-10-CM diagnosis code for coloboma of optic disc, left eye. 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. Coders also document this condition as acquired coloboma of optic disc. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neuro-ophthalmology.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acquired coloboma of optic disc
- Acquired coloboma of optic disc of left eye
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to H47.312: its own notes plus those printed at 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.
- 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.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Optic Nerve Disorders
The optic nerve is a bundle of more than 1 million nerve fibers that carry visual messages. You have one connecting the back of each eye (your retina) to your brain. Damage to an optic nerve can cause vision loss. The type of vision loss and how severe it is depends on where the damage occurs. It may affect one or both eyes.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert H47.312 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About H47.312Overview
What is the ICD-10 code for coloboma of optic disc, left eye?
The ICD-10-CM code for coloboma of optic disc, left eye is H47.312 (sometimes written as H47312). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is H47.312 (Coloboma of optic disc) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report coloboma of optic disc, left eye on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does H47.312 group to?
When coloboma of optic disc, left eye 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 H47.312?
Under the General Equivalence Mappings, coloboma of optic disc, left eye converts to ICD-9-CM 377.23 (coloboma of optic disc). The mapping is approximate, so confirm the match fits the documentation.
