H16.312 — Corneal abscess, left eye
Is H16.312 billable?
Yes — H16.312 is billable for FY2027. H16.312 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. H16.312 may be submitted for encounters from October 1, 2026 through September 30, 2027.
H16.312 at a glance
| Code | H16.312 |
|---|---|
| Description | Corneal abscess, left eye |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does H16.312 group to?
H16.312 sits in MDC 02 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 121Acute Major Eye Infections with CC/MCCmedical
- 122Acute Major Eye Infections without CC/MCCmedical
How is H16.312 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under H16.31, the nearest indexed parent of H16.312. Use them to find the family, then select the specific code.
- Abscess › cornea (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
Excludes2 — not included here — inherited from Chapter 7
The conditions below are not part of H16.312, but a patient may have both at the same time. When documentation supports it, H16.312 and the excluded code may both be reported.
- 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)
How long has H16.312 existed?
H16.312 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.