ICDcodes.org
FY2027

H01.00B — Unspecified blepharitis left eye, upper and lower eyelids

BillableUnspecified

Is H01.00B billable?

Yes, but H01.00B is an unspecified code. H01.00B is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, H01.00B is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting H01.00B — the more specific alternatives are listed below.

H01.00B at a glance

CodeH01.00B
DescriptionUnspecified blepharitis left eye, upper and lower eyelids
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does H01.00B group to?

H01.00B 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.

  • 124Other Disorders of the Eye with MCC or Thrombolytic Agentmedical
  • 125Other Disorders of the Eye without MCCmedical

How is H01.00B listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to H01.00B. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Blepharitis › left › upper and lower (angularis) (ciliaris) (eyelid) (marginal) (nonulcerative)

Excludes1 — never code together — inherited from H01.0

The conditions below can never be reported together with H01.00B on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • blepharoconjunctivitis (H10.5-)

Excludes2 — not included here — inherited from Chapter 7

The conditions below are not part of H01.00B, but a patient may have both at the same time. When documentation supports it, H01.00B 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)

Excludes2 — not included here — inherited from H00-H05

The conditions below are not part of H01.00B, but a patient may have both at the same time. When documentation supports it, H01.00B and the excluded code may both be reported.

How long has H01.00B existed?

H01.00B first appears in FY2019.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which conditions are coded to H01.00B?

What other codes are in the H01.00 family? (8)