S48.922A vs S48.922D

S48.922A (Partial traumatic amputation of left shoulder and upper arm, level unspecified, initial encounter) compared with S48.922D (Partial traumatic amputation of left shoulder and upper arm, level unspecified, subsequent encounter), from the official CMS tabular data. S48.922A and S48.922D code the same injury at a different phase of treatment. MedCoder-derived

Relationship

Review

Encounter relationship

S48.922A

Initial encounter

Partial traumatic amputation of left shoulder and upper arm, level unspecified, initial encounter

↔

S48.922D

Subsequent encounter

Partial traumatic amputation of left shoulder and upper arm, level unspecified, subsequent encounter

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. S48.922A and S48.922D 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.

Side by side

	S48.922APartial traumatic amputation of left shoulder and upper arm, level unspecified, initial encounter	S48.922DPartial traumatic amputation of left shoulder and upper arm, level unspecified, subsequent encounter
Billing status	Billable	Billable
Classification	S00-T88 — Injury, poisoning and certain other consequences of external causes	S00-T88 — Injury, poisoning and certain other consequences of external causes
Definition	Partial traumatic amputation of left shoulder and upper arm, level unspecified, initial encounter is a billable ICD-10-CM diagnosis code (S48.922A).	Partial traumatic amputation of left shoulder and upper arm, level unspecified, subsequent encounter is a billable ICD-10-CM diagnosis code (S48.922D).
7th character	The appropriate 7th character is to be added to each code from category S48	The appropriate 7th character is to be added to each code from category S48
Includes	injuries of axilla injuries of scapular region	injuries of axilla injuries of scapular region

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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources