ICD-10-CM H10: Conjunctivitis

ICD-10-CM Diagnosis Code (2025)

Official Description for H10

Conjunctivitis

Coding Notes & Guidelines for H10

Excludes1: Not Coded Here

keratoconjunctivitis (H16.2-)

Excludes1: Not Coded Here

burn and corrosion of eye and adnexa (T26.-)

Excludes1: Not Coded Here

viral conjunctivitis (B30.-)

Excludes1: Not Coded Here

ophthalmia neonatorum NOS (P39.1)

Excludes1: Not Coded Here

vernal keratoconjunctivitis with limbar and corneal involvement (H16.26-)

Excludes1: Not Coded Here

pinguecula (H11.15-)

Code First

(T51-T65) to identify chemical and intent

Code First

underlying rosacea dermatitis (L71.-)

Inclusion Terms

Acute papillary conjunctivitis

Inclusion Terms

Acute chemical conjunctivitis

Code Also
  • underlying condition if known, such as:
  • plasminogen deficiency (E88.02)

Child Codes (More Specific Codes for H10):

H10.0 - Mucopurulent conjunctivitis H10.01 - Acute follicular conjunctivitis H10.011 - Acute follicular conjunctivitis, right eye H10.012 - Acute follicular conjunctivitis, left eye H10.013 - Acute follicular conjunctivitis, bilateral H10.019 - Acute follicular conjunctivitis, unspecified eye H10.02 - Other mucopurulent conjunctivitis H10.021 - Other mucopurulent conjunctivitis, right eye H10.022 - Other mucopurulent conjunctivitis, left eye H10.023 - Other mucopurulent conjunctivitis, bilateral H10.029 - Other mucopurulent conjunctivitis, unspecified eye H10.1 - Acute atopic conjunctivitis H10.10 - Acute atopic conjunctivitis, unspecified eye H10.11 - Acute atopic conjunctivitis, right eye H10.12 - Acute atopic conjunctivitis, left eye H10.13 - Acute atopic conjunctivitis, bilateral H10.2 - Other acute conjunctivitis H10.21 - Acute toxic conjunctivitis H10.211 - Acute toxic conjunctivitis, right eye H10.212 - Acute toxic conjunctivitis, left eye H10.213 - Acute toxic conjunctivitis, bilateral H10.219 - Acute toxic conjunctivitis, unspecified eye H10.22 - Pseudomembranous conjunctivitis H10.221 - Pseudomembranous conjunctivitis, right eye H10.222 - Pseudomembranous conjunctivitis, left eye H10.223 - Pseudomembranous conjunctivitis, bilateral H10.229 - Pseudomembranous conjunctivitis, unspecified eye H10.23 - Serous conjunctivitis, except viral H10.231 - Serous conjunctivitis, except viral, right eye H10.232 - Serous conjunctivitis, except viral, left eye H10.233 - Serous conjunctivitis, except viral, bilateral H10.239 - Serous conjunctivitis, except viral, unspecified eye H10.3 - Unspecified acute conjunctivitis H10.30 - Unspecified acute conjunctivitis, unspecified eye H10.31 - Unspecified acute conjunctivitis, right eye H10.32 - Unspecified acute conjunctivitis, left eye H10.33 - Unspecified acute conjunctivitis, bilateral H10.4 - Chronic conjunctivitis H10.40 - Unspecified chronic conjunctivitis H10.401 - Unspecified chronic conjunctivitis, right eye H10.402 - Unspecified chronic conjunctivitis, left eye H10.403 - Unspecified chronic conjunctivitis, bilateral H10.409 - Unspecified chronic conjunctivitis, unspecified eye H10.41 - Chronic giant papillary conjunctivitis H10.411 - Chronic giant papillary conjunctivitis, right eye H10.412 - Chronic giant papillary conjunctivitis, left eye H10.413 - Chronic giant papillary conjunctivitis, bilateral H10.419 - Chronic giant papillary conjunctivitis, unspecified eye H10.42 - Simple chronic conjunctivitis H10.421 - Simple chronic conjunctivitis, right eye H10.422 - Simple chronic conjunctivitis, left eye H10.423 - Simple chronic conjunctivitis, bilateral H10.429 - Simple chronic conjunctivitis, unspecified eye H10.43 - Chronic follicular conjunctivitis H10.431 - Chronic follicular conjunctivitis, right eye H10.432 - Chronic follicular conjunctivitis, left eye H10.433 - Chronic follicular conjunctivitis, bilateral H10.439 - Chronic follicular conjunctivitis, unspecified eye H10.44 - Vernal conjunctivitis H10.45 - Other chronic allergic conjunctivitis H10.5 - Blepharoconjunctivitis H10.50 - Unspecified blepharoconjunctivitis H10.501 - Unspecified blepharoconjunctivitis, right eye H10.502 - Unspecified blepharoconjunctivitis, left eye H10.503 - Unspecified blepharoconjunctivitis, bilateral H10.509 - Unspecified blepharoconjunctivitis, unspecified eye H10.51 - Ligneous conjunctivitis H10.511 - Ligneous conjunctivitis, right eye H10.512 - Ligneous conjunctivitis, left eye H10.513 - Ligneous conjunctivitis, bilateral H10.519 - Ligneous conjunctivitis, unspecified eye H10.52 - Angular blepharoconjunctivitis H10.521 - Angular blepharoconjunctivitis, right eye H10.522 - Angular blepharoconjunctivitis, left eye H10.523 - Angular blepharoconjunctivitis, bilateral H10.529 - Angular blepharoconjunctivitis, unspecified eye H10.53 - Contact blepharoconjunctivitis H10.531 - Contact blepharoconjunctivitis, right eye H10.532 - Contact blepharoconjunctivitis, left eye H10.533 - Contact blepharoconjunctivitis, bilateral H10.539 - Contact blepharoconjunctivitis, unspecified eye H10.8 - Other conjunctivitis H10.81 - Pingueculitis H10.811 - Pingueculitis, right eye H10.812 - Pingueculitis, left eye H10.813 - Pingueculitis, bilateral H10.819 - Pingueculitis, unspecified eye H10.82 - Rosacea conjunctivitis H10.821 - Rosacea conjunctivitis, right eye H10.822 - Rosacea conjunctivitis, left eye H10.823 - Rosacea conjunctivitis, bilateral H10.829 - Rosacea conjunctivitis, unspecified eye H10.89 - Other conjunctivitis H10.9 - Unspecified conjunctivitis

About ICD-10-CM Code H10 (Conjunctivitis)

ICD-10-CM code H10 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM H10 became effective on October 1, 2024.

This page provides detailed information about H10 - Conjunctivitis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Conjunctivitis.