S72.392A (Other fracture of shaft of left femur, initial encounter for closed fracture)
compared with
S72.392D (Other fracture of shaft of left femur, subsequent encounter for closed fracture with routine healing),
from the official CMS tabular data.
Summary
These codes describe the same injury at different phases of treatment, so the 7th character that matches the encounter decides which one applies.
MedCoder-derived
What is different?
Title wording.The titles share “Other fracture of shaft of left femur”; S72.392A says “initial encounter for closed fracture” where S72.392D says “subsequent encounter for closed fracture with routine healing”.
Registry fact
Can these codes be reported together?
One per encounter.S72.392A and S72.392D 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.
Official rule: a tabular instructional note or a section of the ICD-10-CM Official Guidelines, quoted as published. Registry fact: the codes’ own published attributes (titles, billable status, position in the hierarchy, code set). MedCoder-derived: a reading MedCoder computes from those facts; it is not itself a rule. How to read the labels
Other fracture of shaft of left femur, subsequent encounter for closed fracture with routine healing
What we found
Same injury, other encounter phase.S72.392A and S72.392D 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.
What to review
Use the 7th character that matches the encounter being coded (initial, subsequent or sequela); one encounter takes one of them.
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.
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
ICD-10-CM Official Guidelines FY2026
Section I.C.19.a — Application of 7th Characters in Chapter 19 · applies to: 7th characters in Chapter 19
Most categories in chapter 19 have a 7th character requirement for each applicable code. Most categories in this chapter have three 7th character values (with the exception of fractures): A, initial encounter, D, subsequent encounter and S, sequela. Categories for traumatic fractures have additional 7th character values. While the patient may be seen by a new or different provider over the course of treatment for an injury, assignment of the 7th character is based on whether the patient is undergoing active treatment and not whether the provider is seeing the patient for the first time. For complication codes, active treatment refers to treatment for the condition described by the code, even though it may be related to an earlier precipitating problem. For example, code T84.50XA, Infection and inflammatory reaction due to unspecified internal joint prosthesis, initial encounter, is used when active treatment is provided for the infection, even though the condition relates to the prosthetic device, implant or graft that was placed at a previous encounter. 7th character “A”, initial encounter is used for each encounter where the patient is receiving active treatment for the condition. 7th character “D” subsequent encounter is used for encounters after the patient has completed active treatment of the condition and is receiving routine care for the condition during the healing or recovery phase. […]
ICD-10-CM Official Guidelines FY2026
Quoted from the ICD-10-CM Official Guidelines for Coding and Reporting in effect for the release shown. The tabular notes above are the code-level instruction; these sections are the convention that says how such a note is applied. Source document (CMS PDF) · Release and checksum
S00-T88 — Injury, poisoning and certain other consequences of external causes
S00-T88 — Injury, poisoning and certain other consequences of external causes
Definition
Other fracture of shaft of left femur, initial encounter for closed fracture is a billable ICD-10-CM diagnosis code (S72.392A).
Other fracture of shaft of left femur, subsequent encounter for closed fracture with routine healing is a billable ICD-10-CM diagnosis code (S72.392D).
7th character
The appropriate 7th character is to be added to all codes from category S72
The appropriate 7th character is to be added to all codes from category S72
Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on.
Derived from the official CMS ICD-10-CM tabular data (FY2026). A coding-rule comparison, not billing advice:
payer-specific edits and medical-necessity policy are outside its scope.
All data sources