Pnctr w/o fb of unsp finger w damage to nail, sequela

This code describes a long-term complication or late effect resulting from a puncture wound to an unspecified finger, where the wound did not involve a foreign body but caused damage to the nail. This indicates that the initial injury has healed, but residual nail damage persists.

Use this code when documenting a patient presenting with ongoing nail deformity, discoloration, or other structural damage to an unspecified finger's nail, which is directly attributable to a past puncture wound without a retained foreign body. This code is appropriate for follow-up visits addressing these chronic sequelae after the acute injury has resolved.

• Always assign this "S" sequela extension for conditions where the initial injury has healed but the residual effect is being treated.
• Ensure documentation clearly links the current nail damage to a previous puncture wound of the finger.
• Do not use this code for acute injuries; instead, use the appropriate acute injury code with the initial encounter or subsequent encounter extension.