S66.397A (Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter)
compared with
S66.397S (Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, sequela),
from the official CMS tabular data. S66.397A and S66.397S code the same injury at a different phase of treatment.
Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, sequela
Same underlying diagnosis, different encounter phase.
The 7th character records the phase of care for the encounter being coded, so a single encounter takes one of these characters, not several. Review whether both phases belong on the same episode of care.
Source: ICD-10-CM Official Guidelines, Section I.C.19.a
Can these codes be reported together?
Same injury, other encounter phase. S66.397A and S66.397S code the same injury at a different phase of treatment, set by the 7th character.
The 7th character records the type of care given at the encounter being coded (ICD-10-CM Official Guidelines, Section I.C.19.a), so one encounter takes one of these, not both.
S00-T88 — Injury, poisoning and certain other consequences of external causes
S00-T88 — Injury, poisoning and certain other consequences of external causes
Definition
Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, initial encounter is a billable ICD-10-CM diagnosis code (S66.397A).
Other injury of extensor muscle, fascia and tendon of left little finger at wrist and hand level, sequela is a billable ICD-10-CM diagnosis code (S66.397S).
7th character
The appropriate 7th character is to be added to each code from category S66
The appropriate 7th character is to be added to each code from category S66