2020 ICD-10-CM Diagnosis Code H16.399

Other interstitial and deep keratitis, unspecified eye

    2016 2017 2018 2019 2020 Billable/Specific Code
  • H16.399 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM H16.399 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of H16.399 - other international versions of ICD-10 H16.399 may differ.
The following code(s) above H16.399 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 H16.399:
  • H00-H59
    2020 ICD-10-CM Range H00-H59

    Diseases of the eye and adnexa

    • 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
ICD-10-CM H16.399 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 124 Other disorders of the eye with mcc
  • 125 Other disorders of the eye without mcc

Convert H16.399 to ICD-9-CM

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

Diagnosis Index entries containing back-references to H16.399:
  • Keratitis (nodular) (nonulcerative) (simple) (zonular) H16.9
    ICD-10-CM Diagnosis Code H16.9

    Unspecified keratitis

      2016 2017 2018 2019 2020 Billable/Specific Code
    • deep H16.309
      ICD-10-CM Diagnosis Code H16.309

      Unspecified interstitial keratitis, unspecified eye

        2016 2017 2018 2019 2020 Billable/Specific Code
      • specified type NEC H16.399

ICD-10-CM Codes Adjacent To H16.399
H16.329 …… unspecified eye
H16.33 Sclerosing keratitis
H16.331 …… right eye
H16.332 …… left eye
H16.333 …… bilateral
H16.339 …… unspecified eye
H16.39 Other interstitial and deep keratitis
H16.391 …… right eye
H16.392 …… left eye
H16.393 …… bilateral
H16.399 …… unspecified eye
H16.4 Corneal neovascularization
H16.40 Unspecified corneal neovascularization
H16.401 …… right eye
H16.402 …… left eye
H16.403 …… bilateral
H16.409 …… unspecified eye
H16.41 Ghost vessels (corneal)
H16.411 …… right eye
H16.412 …… left eye
H16.413 …… bilateral

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