2027 ICD-10-CM Diagnosis Code H01.009Unspecified blepharitis unspecified eye, unspecified eyelid
ICD-10-CM Codes›H00–H59›H00-H05›H01
- Billable — Valid for Submission
- Not Chronic
H01.009 is a billable ICD-10-CM diagnosis code for unspecified blepharitis unspecified eye, unspecified eyelid. 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 Cornea and external disease.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute blepharitis
- Angular blepharitis
- Anterior blepharitis of lower eyelid
- Anterior blepharitis of upper eyelid
- Blepharitis
- Blepharitis of lower eyelid caused by Staphylococcus
- Blepharitis of upper eyelid caused by Staphylococcus
- Chronic blepharitis
- Demodectic blepharitis
- Infective blepharitis
- Infestation by Demodex
- Infestation by Demodex folliculorum
- Inflammation of anterior lid margin
- Ocular rosacea
- Parasitic infestation of eyelid caused by Demodex
- Posterior lid margin disease
- Rosacea blepharitis
- Seborrhea faciei
- Seborrheic blepharitis
- Seborrheic blepharitis of upper eyelid
- Seborrheic inflammation of anterior margin of lower eyelid
- Staphylococcal blepharitis
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to H01.009: its own notes plus those printed at H01.0, block H00-H05, 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.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Blepharitis
inflammation of the eyelids.
Patient EducationClinical
Eyelid Disorders
Eyelid disorders include a variety of conditions that affect your eyelids. Your eyelids protect your eyes and help keep them healthy. When you blink, they spread tears across your eyes and help wash away dirt or dust. You also close your eyelids when something comes near your eyes to protect them from injury.
The full article covers:
- What are eyelid disorders?
- What causes eyelid disorders?
- What are common eyelid disorders?
- What are the symptoms of eyelid disorders?
- How are eyelid disorders diagnosed?
- How are eyelid disorders treated?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert H01.009 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About H01.009Overview
What is the ICD-10 code for unspecified blepharitis unspecified eye, unspecified eyelid?
The ICD-10-CM code for unspecified blepharitis unspecified eye, unspecified eyelid is H01.009 (sometimes written as H01009). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is H01.009 (Unspecified blepharitis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified blepharitis unspecified eye, unspecified eyelid on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does H01.009 group to?
When unspecified blepharitis unspecified eye, unspecified eyelid 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 H01.009 be reported with a code from H10.5?
Not as a rule. The Excludes1 note at H01.0, which applies to H01.009, lists "blepharoconjunctivitis (H10.5-)". 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 H01.009?
Under the General Equivalence Mappings, unspecified blepharitis unspecified eye, unspecified eyelid converts to ICD-9-CM 373.00 (blepharitis NOS). The mapping is approximate, so confirm the match fits the documentation.
