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Ch. I
ICD-10
Ch. I
A51
A51
3-char group
Early syphilis
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⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
●
Avoid — more specific 4-5 char codes exist (see below)
Codes within A51
A51.0
Primary genital syphilis
A51.1
Primary anal syphilis
A51.2
Primary syphilis of other sites
A51.3
Secondary syphilis of skin and mucous membranes
A51.4
Other secondary syphilis
A51.5
Early syphilis, latent
A51.9
Early syphilis, unspecified
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