2021

  1. ICD-10-CM Codes
    2. ›
  2. H00-H59 Diseases of the eye and adnexa
    3. ›
  3. H00-H05 Disorders of eyelid, lacrimal system and orbit
    4. ›
  4. H00- Hordeolum and chalazion
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code H00.01

2021 ICD-10-CM Diagnosis Code H00.01

Hordeolum externum

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • H00.01 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM H00.01 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of H00.01 - other international versions of ICD-10 H00.01 may differ.
Applicable To
  • Hordeolum NOS
  • Stye
The following code(s) above H00.01 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to H00.01:
  • H00-H59
    2021 ICD-10-CM Range H00-H59

    Diseases of the eye and adnexa

    Note
    • Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition
    Type 2 Excludes
    • 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)
    Diseases of the eye and adnexa
  • H00-H05
    2021 ICD-10-CM Range H00-H05

    Disorders of eyelid, lacrimal system and orbit

    Type 2 Excludes
    Disorders of eyelid, lacrimal system and orbit
Clinical Information
  • Purulent infection of one of the sebaceous glands of zeis along the eyelid margin (external) or of the meibomian gland on the conjunctival side of the eyelid (internal).
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
ICD-10-CM Codes Adjacent To H00.01
G97.84 Intracranial hypotension following other procedure
G98 Other disorders of nervous system not elsewhere classified
G98.0 Neurogenic arthritis, not elsewhere classified
G98.8 Other disorders of nervous system
G99 Other disorders of nervous system in diseases classified elsewhere
G99.0 Autonomic neuropathy in diseases classified elsewhere
G99.2 Myelopathy in diseases classified elsewhere
G99.8 Other specified disorders of nervous system in diseases classified elsewhere
H00 Hordeolum and chalazion
H00.0 Hordeolum (externum) (internum) of eyelid
H00.01 Hordeolum externum
H00.011 …… right upper eyelid
H00.012 …… right lower eyelid
H00.013 …… right eye, unspecified eyelid
H00.014 …… left upper eyelid
H00.015 …… left lower eyelid
H00.016 …… left eye, unspecified eyelid
H00.019 …… unspecified eye, unspecified eyelid
H00.02 Hordeolum internum
H00.021 …… right upper eyelid
H00.022 …… right lower eyelid

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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