ICD-10 Code for Keratitis
The default ICD-10-CM 2027 code for keratitis (nodular) (nonulcerative) (simple) (zonular) is H16.9 – Unspecified keratitis. More specific codes depend on the details documented, as listed in the official index (27 codes, 19 billable).
- Main code
H16.9– Unspecified keratitis- Billable
- Yes
Index entries for Keratitis
- with ulceration (central) (marginal) (perforated) (ring) – see Ulcer, cornea
- actinic – see Photokeratitis
- arborescens (herpes simplex) –
B00.52 - areolar –
H16.11-(header) - bullosa –
H16.8 - deep –
H16.309- specified type NEC –
H16.399
- specified type NEC –
- dendritic (a) (herpes simplex) –
B00.52 - disciform (is) (herpes simplex) –
B00.52- varicella –
B01.81
- varicella –
- filamentary –
H16.12-(header) - gonococcal (congenital or prenatal) –
A54.33 - herpes, herpetic (simplex) –
B00.52- zoster –
B02.33
- zoster –
- in (due to)
- interstitial (nonsyphilitic) –
H16.30-(header) - macular –
H16.11-(header) - nummular –
H16.11-(header) - oyster shuckers' –
H16.8 - parenchymatous – see Keratitis, interstitial
- petrificans –
H16.8 - postmeasles –
B05.81 - punctata
- punctate –
H16.14-(header) - purulent –
H16.8 - rosacea –
L71.8 - sclerosing –
H16.33-(header) - specified type NEC –
H16.8 - stellate –
H16.11-(header) - striate –
H16.11-(header) - superficial –
H16.10-(header)- with conjunctivitis – see Keratoconjunctivitis
- due to light – see Photokeratitis
- suppurative –
H16.8 - syphilitic (congenital) (prenatal) –
A50.31 - trachomatous –
A71.1- sequelae –
B94.0
- sequelae –
- tuberculous –
A18.52 - vesicular –
H16.8 - xerotic –
H16.8– see also Keratomalacia- vitamin A deficiency –
E50.4
- vitamin A deficiency –
How to choose the right code
Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.
Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.