FY2027 ICD-10-CM reference
H05: Disorders of orbit
By the HCC Buddy Coding Team
The official ICD-10-CM descriptor is Disorders of orbit. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Nonbillable heading. Verified against the official FY2027 order file.
CMS-HCC V28
Not applicable to this nonbillable heading
CMS-HCC V24
Not applicable to this nonbillable heading
ESRD
Not applicable to this nonbillable heading
PACE
Not applicable to this nonbillable heading
RxHCC
Not applicable to this nonbillable heading
HHS-HCC
Not applicable to this nonbillable heading
More specific FY2027 codes
- H05.0: Acute inflammation of orbitNonbillable heading
- H05.1: Chronic inflammatory disorders of orbitNonbillable heading
- H05.2: Exophthalmic conditionsNonbillable heading
- H05.3: Deformity of orbitNonbillable heading
- H05.4: EnophthalmosNonbillable heading
- H05.5: Retained (old) foreign body following penetrating wound of orbitNonbillable heading
- H05.8: Other disorders of orbitNonbillable heading
- H05.9: Unspecified disorder of orbitBillable code
FY2027 Tabular instructions
Instructions below include applicable chapter, section and parent-code notes. Each note identifies where it appears in the official source.
Instructional note
Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition
Source: H00-H59 (chapter, inherited).
Excludes2
certain conditions originating in the perinatal period (P04-P96)
Source: H00-H59 (chapter, inherited).
Excludes2
certain infectious and parasitic diseases (A00-B99)
Source: H00-H59 (chapter, inherited).
Excludes2
complications of pregnancy, childbirth and the puerperium (O00-O9A)
Source: H00-H59 (chapter, inherited).
Excludes2
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
Source: H00-H59 (chapter, inherited).
Excludes2
diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
Source: H00-H59 (chapter, inherited).
Excludes2
endocrine, nutritional and metabolic diseases (E00-E88)
Source: H00-H59 (chapter, inherited).
Excludes2
injury (trauma) of eye and orbit (S05.-)
Source: H00-H59 (chapter, inherited).
Excludes2
injury, poisoning and certain other consequences of external causes (S00-T88)
Source: H00-H59 (chapter, inherited).
Excludes2
neoplasms (C00-D49)
Source: H00-H59 (chapter, inherited).
Excludes2
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: H00-H59 (chapter, inherited).
Excludes2
syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)
Source: H00-H59 (chapter, inherited).
Excludes2
open wound of eyelid (S01.1-)
Source: H00-H05 (section, inherited).
Excludes2
superficial injury of eyelid (S00.1-, S00.2-)
Source: H00-H05 (section, inherited).
Excludes1
congenital malformation of orbit (Q10.7)
Source: H05 (category, direct).
Compare the FY2027 additions, removals and billable-status changes
What does H05 mean in FY2027?
The official ICD-10-CM descriptor is Disorders of orbit. The FY2027 annual edition starts October 1, 2026. Check the edition that applies to the encounter or inpatient discharge, including any April update.
Is H05 billable in FY2027?
The FY2027 order file marks H05 as a nonbillable heading. Select a complete billable child code.
Does H05 map to an HCC?
Risk-model mapping is not applicable to this nonbillable heading. Check a complete billable child code.
Source: CMS FY2027 ICD-10-CM order file. Payment model: CMS CY 2027 Rate Announcement. Read the FY2027 Official Guidelines.
Review the FY2026 April edition