2027 ICD-10-CM Diagnosis Code H27.9Unspecified disorder of lens
ICD-10-CM Codes›H00–H59›H25-H28›H27
- Billable — Valid for Submission
- Not Chronic
H27.9 is a billable ICD-10-CM diagnosis code for unspecified disorder of lens. 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 Cataract and other lens disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Bilateral acute angle closure
- Bilateral disorder of lens
- Bilateral phacolytic ocular hypertension
- Bilateral phacomorphic angle closure glaucoma
- Bilateral phacomorphic secondary acute angle closure
- Bilateral secondary acute angle closure
- Bilateral secondary angle closure glaucoma
- Disorder of lens
- Disorder of lens capsule
- Disorder of lens of left eye
- Disorder of lens of right eye
- Glaucoma of left eye due to lens disorder
- Glaucoma of right eye due to lens disorder
- Lens particle glaucoma
- Phacogenic glaucoma
- Phacolytic glaucoma
- Phacolytic glaucoma of bilateral eyes
- Phacolytic glaucoma of left eye
- Phacolytic glaucoma of right eye
- Phacolytic ocular hypertension
- Phacolytic ocular hypertension of left eye
- Phacolytic ocular hypertension of right eye
- Phacomorphic glaucoma
- Phacomorphic glaucoma of left eye
- Phacomorphic glaucoma of right eye
- Phacomorphic secondary acute angle closure
- Phacomorphic secondary acute angle closure of left eye
- Phacomorphic secondary acute angle closure of right eye
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to H27.9: its own notes plus those printed at H27 and Chapter 7. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
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.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disease, diseased See Also: Syndrome;
lens H27.9
Disorder (of) See Also: Disease;
lens H27.9
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Eye Diseases
Even if your eyes feel healthy, you could have a problem and not know it. That's why regular eye exams are so important. Refractive errors are the most common type of vision problem that makes it hard to see clearly. But some eye conditions or diseases don't have any symptoms and can lead to a permanent loss of vision.
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- What are the symptoms of eye diseases?
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Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert H27.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About H27.9Overview
What is the ICD-10 code for unspecified disorder of lens?
The ICD-10-CM code for unspecified disorder of lens is H27.9 (sometimes written as H279). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is H27.9 (Other disorders of lens) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified disorder of lens on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does H27.9 group to?
When unspecified disorder of lens 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.
Can H27.9 be reported with a code from Q12?
Not as a rule. The Excludes1 note at H27, which applies to H27.9, lists "congenital lens malformations (Q12.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of H27.9?
Under the General Equivalence Mappings, unspecified disorder of lens converts to ICD-9-CM 379.39 (disorders of lens NEC). The mapping is approximate, so confirm the match fits the documentation.
