H31.12 Diffuse secondary atrophy of choroid

Non-billable header with 4 child codes.

Applies from H31.1 Choroidal degeneration

Excludes2 (not included here)

• angioid streaks of macula (H35.33)

Codes under H31.12

• H31.121 Diffuse secondary atrophy of choroid, right eye
• H31.122 Diffuse secondary atrophy of choroid, left eye
• H31.123 Diffuse secondary atrophy of choroid, bilateral
• H31.129 Diffuse secondary atrophy of choroid, unspecified eye

Code annotations containing back-references to H31.12

Back-references to H31.1

• Type 1 Excludes: H35.5 Hereditary retinal dystrophy ("dystrophies primarily involving Bruch's membrane (H31.1-)")

Back-references to H31

• Use Additional: H44.2A Degenerative myopia with choroidal neovascularization ("code for any associated choroid disorders (H31.-)")

Diagnosis Index entries for H31.12

• Atrophy, atrophic (of) › choroid (central) (macular) (myopic) (retina) › diffuse secondary

Nearby codes

• H31.11 Age-related choroidal atrophy
• H31.111 Age-related choroidal atrophy, right eye
• H31.112 Age-related choroidal atrophy, left eye
• H31.113 Age-related choroidal atrophy, bilateral
• H31.119 Age-related choroidal atrophy, unspecified eye
• H31.12 Diffuse secondary atrophy of choroid (this code)
• H31.121 Diffuse secondary atrophy of choroid, right eye
• H31.122 Diffuse secondary atrophy of choroid, left eye
• H31.123 Diffuse secondary atrophy of choroid, bilateral
• H31.129 Diffuse secondary atrophy of choroid, unspecified eye
• H31.2 Hereditary choroidal dystrophy