Home > 2015 ICD-9-CM Diagnosis Codes > Diseases Of The Nervous System And Sense Organs 320-389 > Disorders Of The Eye And Adnexa 360-379 > Keratitis 370-
Specific code 2015 ICD-9-CM Diagnosis Code 370.00
Corneal ulcer, unspecified
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 370.00 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 370.00 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
Convert to ICD-10-CM: 370.00 converts approximately to:
  • 2015/16 ICD-10-CM H16.009 Unspecified corneal ulcer, unspecified eye
Approximate Synonyms
  • Acanthamoeba corneal ulcer
  • Bilat corneal ulcer
  • Bilateral corneal ulcer
  • Corneal erosion
  • Corneal perforation
  • Corneal ulcer
  • Corneal ulcer due to acanthamoeba
  • Corneal ulcer, both eyes
  • L corneal ulcer
  • Left corneal ulcer
  • Left corneal ulcer (eye condition)
  • Perforation of cornea
  • R corneal ulcer
  • Right corneal ulcer
  • Right corneal ulcer (eye condition)
  • Superficial corneal ulcer
Clinical Information
  • Area of epithelial tissue loss from corneal surface; associated with inflammatory cells in the cornea and anterior chamber
  • Loss of epithelial tissue from the surface of the cornea due to progressive erosion and necrosis of the tissue; usually caused by bacterial, fungal, or viral infection
ICD-9-CM Volume 2 Index entries containing back-references to 370.00:
  • Abscess (acute) (chronic) (infectional) (lymphangitic) (metastatic) (multiple) (pyogenic) (septic) (with lymphangitis) (see also Cellulitis) 682.9
    • cornea 370.55
      • with ulcer 370.00
  • Inflammation, inflamed, inflammatory (with exudation)
    • cornea (see also Keratitis) 370.9
      • with ulcer (see also Ulcer, cornea) 370.00
  • Keratitis (nodular) (nonulcerative) (simple) (zonular) NEC 370.9
    • with ulceration (see also Ulcer, cornea) 370.00
    • interstitial (nonsyphilitic) 370.50
      • with ulcer (see also Ulcer, cornea) 370.00
      • diffuse 370.52
      • herpes, herpetic (simplex) 054.43
      • syphilitic (congenital) (hereditary) 090.3
      • tuberculous (see also Tuberculosis) 017.3 [370.59]
    • ulcerated (see also Ulcer, cornea) 370.00
  • Ophthalmia (see also Conjunctivitis) 372.30
    • phlyctenular 370.31
      • with ulcer (see also Ulcer, cornea) 370.00
  • Perforation, perforative (nontraumatic)
    • cornea (see also Ulcer, cornea) 370.00
  • Phlyctenulosis (allergic) (keratoconjunctivitis) (nontuberculous) 370.31
    • cornea 370.31
      • with ulcer (see also Ulcer, cornea) 370.00
  • Rupture, ruptured 553.9
    • cornea (traumatic) - see also Rupture, eye
      • due to ulcer 370.00
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative 707.9
    • keratitis (see also Ulcer, cornea) 370.00
  • Xerosis
    • cornea 371.40
      • with corneal ulceration 370.00
        • vitamin A deficiency 264.3
      • vitamin A deficiency 264.2
 370.0 ICD9Data.com 370.01 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 370.00 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
Free ICD-9-CM Codes
Site Information
Free ICD-10-CM/PCS Codes
Free HCPCS Codes