P28.19 ICD-10-CM Code: Other atelectasis of newborn

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for P28.19 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2026Effective: October 1, 2025

Notes without a marker are published on P28.19 itself; “inherited from” names the category or block whose note applies here.

Coder workflow for P28.19

MedCoder structured workflow — derived from this code’s own official record

Before you code P28.19

1. “Other” (NEC) means the condition is specified in the record but no dedicated code captures it. Confirm the documented form is not one a sibling code names before settling on P28.19; if the record states no specifics at all, the unspecified sibling applies instead. “Other” codes are for documented conditions the classification gives no specific code; “unspecified” codes are for records lacking the detail (Guidelines I.A.9.a, I.A.9.b).

   ReviewP28.11

   See the relationships section · Guide: Other vs unspecified (NEC vs NOS) →

Documentation check

The provider’s diagnostic statement

Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).

Any detail beyond this code’s title

What the record states that a more specific sibling code would capture — or its absence, which itself supports the unspecified code.

Official instructions as workflow

• Code Also — related condition(1 note)

  Coding workflow: Review the related condition when both are documented and the instruction applies. A Code Also note does not fix sequencing; the order follows the circumstances of the encounter.

  See the official tabular notes · Guidelines I.A.17

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Indexed Clinical Terms (2)

Official source data — entries quoted as published, in the Index’s own lookup phrasing

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code. These are alphabetic-index entries shown as the Index writes them — lookup phrasing, not necessarily the wording of a final diagnosis.

• Atelectasis (massive) (partial) (pressure) (pulmonary), newborn, partial
• Atelectasis (massive) (partial) (pressure) (pulmonary), newborn, secondary

Don’t confuse P28.19 with…

MedCoder analysis — pairs from this code’s official notes, distinctions written by MedCoder

The codes most likely to be picked instead of P28.19 — named in its own official notes, or sharing its laterality or encounter family — with what separates them and which documentation moves the case. Each links to the full comparison.

• P28.10— Specificity relationship (Review)

  Overlapping diagnoses in the same category.

  Overlapping codes in the same category — the documentation decides which is the more specific fit.

  What moves you there: A record that documents no more than “Unspecified atelectasis of newborn” takes P28.10; specificity in the record moves it back here.

  Full comparison: P28.19 vs P28.10 →

Relationships are read from this code's own official notes, its laterality siblings and its encounter family; the wording of each distinction is MedCoder editorial, and the documentation named in each “what moves you there” line is the official note phrase or sibling title itself. Source: CMS ICD-10-CM tabular instructional notes; ICD-10-CM Official Guidelines, Section I.A.12.a.

Verify Before Coding

• CC as a secondary diagnosis (FY2026). Can raise the stay's MS-DRG severity tier.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Relationships & Classification

MedCoder structured relationships — computed from published CMS and AHRQ datasets

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

FY2026 MS-DRG: CC — Complication or Comorbidity. Reported as a secondary diagnosis, this code raises the stay's MS-DRG severity tier — except when the principal diagnosis is one of 78 clinically related codes on its CMS exclusion list.

Named in the grouper logic of 1 MS-DRG: DRG 794 (MDC 15).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Clinical classification (AHRQ CCSR):PNL006 — Respiratory perinatal condition (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Related Codes

Same clinical process (MS-DRG)

Acts as CC — raises the severity of other admissions. CMS groups these diagnoses into one MS-DRG principal-diagnosis exclusion process — a CC/MCC on this list never raises severity when the principal diagnosis is also on it.

P26.1 — Massive pulmonary hemorrhage originating in the perinatal period, P26.8 — Other pulmonary hemorrhages originating in the perinatal period, P26.9 — Unspecified pulmonary hemorrhage originating in the perinatal period, P27.0 — Wilson-Mikity syndrome, P27.1 — Bronchopulmonary dysplasia originating in the perinatal period, P27.8 — Other chronic respiratory diseases originating in the perinatal period, P27.9 — Unspecified chronic respiratory disease originating in the perinatal period, P28.0 — Primary atelectasis of newborn, P28.10 — Unspecified atelectasis of newborn, P28.11 — Resorption atelectasis without respiratory distress syndrome, P28.2 — Cyanotic attacks of newborn, P28.30 — Primary sleep apnea of newborn, unspecified, P28.31 — Primary central sleep apnea of newborn, P28.32 — Primary obstructive sleep apnea of newborn, P28.33 — Primary mixed sleep apnea of newborn, P28.39 — Other primary sleep apnea of newborn, P28.40 — Unspecified apnea of newborn, P28.41 — Central neonatal apnea of newborn, P28.42 — Obstructive apnea of newborn, P28.43 — Mixed neonatal apnea of newborn, +57 more

Same CMS-HCC risk category (V28)

CMS maps these diagnoses to the same Hierarchical Condition Category (Cardio-Respiratory Failure and Shock) for risk-adjusted payment.

J96.22 — Acute and chronic respiratory failure with hypercapnia, J96.90 — Respiratory failure, unspecified, unspecified whether with hypoxia or hypercapnia, J96.91 — Respiratory failure, unspecified with hypoxia, J96.92 — Respiratory failure, unspecified with hypercapnia, P22.0 — Respiratory distress syndrome of newborn, P26.0 — Tracheobronchial hemorrhage originating in the perinatal period, P26.1 — Massive pulmonary hemorrhage originating in the perinatal period, P26.8 — Other pulmonary hemorrhages originating in the perinatal period, P26.9 — Unspecified pulmonary hemorrhage originating in the perinatal period, P27.0 — Wilson-Mikity syndrome, P27.1 — Bronchopulmonary dysplasia originating in the perinatal period, P27.8 — Other chronic respiratory diseases originating in the perinatal period, P27.9 — Unspecified chronic respiratory disease originating in the perinatal period, P28.0 — Primary atelectasis of newborn, P28.10 — Unspecified atelectasis of newborn, P28.11 — Resorption atelectasis without respiratory distress syndrome, P28.5 — Respiratory failure of newborn, P29.81 — Cardiac arrest of newborn, R57.0 — Cardiogenic shock, R57.9 — Shock, unspecified, +15 more

Related risk categories

These categories interact through CMS's HCC hierarchy — one can suppress the other's risk-adjustment weight when both are present on a claim.

Respirator Dependence/Tracheostomy Status/Complications, Respiratory Arrest

Same clinical category (CCSR)

AHRQ's Clinical Classifications Software groups these diagnoses under the same clinical category (Respiratory perinatal condition).

P26.1 — Massive pulmonary hemorrhage originating in the perinatal period, P26.8 — Other pulmonary hemorrhages originating in the perinatal period, P26.9 — Unspecified pulmonary hemorrhage originating in the perinatal period, P27.0 — Wilson-Mikity syndrome, P27.1 — Bronchopulmonary dysplasia originating in the perinatal period, P27.8 — Other chronic respiratory diseases originating in the perinatal period, P27.9 — Unspecified chronic respiratory disease originating in the perinatal period, P28.0 — Primary atelectasis of newborn, P28.10 — Unspecified atelectasis of newborn, P28.11 — Resorption atelectasis without respiratory distress syndrome, P28.2 — Cyanotic attacks of newborn, P28.3 — Primary sleep apnea of newborn, P28.30 — Primary sleep apnea of newborn, unspecified, P28.31 — Primary central sleep apnea of newborn, P28.32 — Primary obstructive sleep apnea of newborn, P28.33 — Primary mixed sleep apnea of newborn, P28.39 — Other primary sleep apnea of newborn, P28.4 — Other apnea of newborn, P28.40 — Unspecified apnea of newborn, P28.41 — Central neonatal apnea of newborn, +33 more

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main term “Atelectasis”; these codes share that main term but sit in a different category of the Tabular List.

J98.11 — Atelectasis

Contextual Map

Every relationship of P28.19 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

• P00-P96 — Chapter 16: Certain Conditions Originating in the Perinatal Period (P00-P96) (P00-P96)[Hierarchy]— CMS ICD-10-CM tabular structure · icd10cm-fy2026

Clinical classification (CCSR)

• PNL006 — Respiratory perinatal condition[CCSR]— AHRQ CCSR for ICD-10-CM Diagnoses (HCUP)

Risk adjustment (CMS-HCC)

• HCC 213 — Cardio-Respiratory Failure and Shock [CMS-HCC]— CMS-HCC V28 · 2026

MS-DRG Grouper

• CC — Complication or Comorbidity [MS-DRG severity]: “As a secondary diagnosis this code can raise the stay's MS-DRG severity tier (CC).”— CMS MS-DRG Definitions Manual (Appendix C) · FY2026
• DRG 794 — NEONATE WITH OTHER SIGNIFICANT PROBLEMS[MS-DRG]: “NEONATE WITH OTHER SIGNIFICANT PROBLEMS (MDC 15)”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026

MDC crossing

• MDC 15 — Newborns and Other Neonates with Conditions Originating in Perinatal Period[MDC crossing]: “Newborns and Other Neonates with Conditions Originating in Perinatal Period — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”— CMS MS-DRG Definitions Manual · FY2026

Index entries

• Atelectasis (massive) (partial) (pressure) (pulmonary), newborn, partial[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026
• Atelectasis (massive) (partial) (pressure) (pulmonary), newborn, secondary[Index term]— CMS ICD-10-CM Index to Diseases and Injuries · icd10cm-fy2026

Nearest codes (23)

• P28 — Other respiratory conditions originating in the perinatal period[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P28.0 — Primary atelectasis of newborn[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P28.1 — Other and unspecified atelectasis of newborn[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P28.10 — Unspecified atelectasis of newborn[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P28.11 — Resorption atelectasis without respiratory distress syndrome[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P28.2 — Cyanotic attacks of newborn[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P28.3 — Primary sleep apnea of newborn[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• P28.30 — Primary sleep apnea of newborn, unspecified[Sibling]— CMS ICD-10-CM tabular structure · icd10cm-fy2026
• and 15 more

Change history

• FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data

CMS/CDC ICD-10-CM FY2026 tabular list, index and tables, effective October 1, 2025 Release, file and checksum · Publisher’s page

Claim edits Official source data

CMS Definitions of Medicare Code Edits — v43.1 (April 2026) Release, file and checksum · Publisher’s page

Inpatient payment groups Official source data

CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43 Release, file and checksum · Publisher’s page

Risk adjustment Official source data

2026 Mid-Year Final ICD-10 Mappings + Model Software (cms.gov/files/zip/2026-midyear-final-icd-10-mappings.zip, 2026-midyear-final-model-software.zip) — CMS-HCC V28, PY2026 mid-year final release Release, file and checksum · Publisher’s page

Change history and date-of-service validity Official source data

CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page

Comparisons, relationships and the contextual map MedCoder structured relationship

Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears

Summary and FAQ answers MedCoder explanation

Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Labels on this page: Official source data · MedCoder structured relationship · MedCoder explanation. How to read the labels · All data sources and release dates

Nearest Codes in This Family

Official ICD-10-CM classifications closest to P28.19 in its code family, with their registry titles.

• P28 — Other respiratory conditions originating in the perinatal period
• P28.0 — Primary atelectasis of newborn
• P28.1 — Other and unspecified atelectasis of newborn
• P28.10 — Unspecified atelectasis of newborn
• P28.11 — Resorption atelectasis without respiratory distress syndrome
• P28.2 — Cyanotic attacks of newborn
• P28.3 — Primary sleep apnea of newborn
• P28.30 — Primary sleep apnea of newborn, unspecified
• P28.31 — Primary central sleep apnea of newborn
• P28.32 — Primary obstructive sleep apnea of newborn

View all codes in the P28 family