ICD-10-CM 2027 diagnosis code
H04.00Unspecified dacryoadenitis
H04.00 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.
Looking up by condition? See ICD-10 code for Dacryoadenitis.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About H04.00
H04.00 is the ICD-10-CM diagnosis code for unspecified dacryoadenitis. It belongs to category H04 (disorders of lacrimal system), block H00-H05 (disorders of eyelid, lacrimal system and orbit) and chapter 7 (diseases of the eye and adnexa). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.
Within H04.0, choose H04.00 (Unspecified dacryoadenitis) only when documentation doesn't support a more specific option: acute dacryoadenitis (H04.01), chronic dacryoadenitis (H04.02) and chronic enlargement of lacrimal gland (H04.03).
To report this condition, pick the subcode that matches the documentation: H04.001 (right lacrimal gland), H04.002 (left lacrimal gland), H04.003 (bilateral lacrimal glands) and H04.009 (unspecified lacrimal gland).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under H04.00
Notes that apply from higher levels
Instructions written at a parent level also apply to H04.00.
Broader instructions also apply from H00-H05 Disorders of eyelid, lacrimal system and orbit and Chapter 7: Diseases of the eye and adnexa.
Alphabetic index entries
1 entriesTerms in the official ICD-10-CM index that lead to H04.00.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about H04.00
Is H04.00 billable?
- No. H04.00 is a header code. Report one of its more specific subcodes instead.